<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2020-2021</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2020-2021/an-oxide-xo-2-has-a-vapour-density-of-32-what-is-the-atomic-6a00aa09db22397c61e7daa0</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2020-2021/aluminium-is-a-good-roofing-material-because-it-6a00aa09db22397c61e7daa1</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2020-2021/an-atom-can-turn-into-an-ion-if-it-6a00aa09db22397c61e7daa2</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2020-2021/commercial-bleaching-can-be-carried-out-using-6a00aa09db22397c61e7daa3</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2020-2021/the-following-compounds-contain-the-same-type-of-bonds-6a00aa09db22397c61e7daa4</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2020-2021/a-positive-brown-ring-test-indicates-the-presence-of-6a00aa09db22397c61e7daa5</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2020-2021/the-gas-produced-when-a-mixture-of-sodium-propanoate-and-6a00aa09db22397c61e7daa6</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2020-2021/pauli-exclusion-principle-is-related-to-6a00aa09db22397c61e7daa7</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2020-2021/the-oxidation-state-of-chlorine-in-hclo-is-6a00aa09db22397c61e7daa8</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2020-2021/which-of-the-following-hydrogen-halides-has-the-highest-6a00aa09db22397c61e7daa9</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2020-2021/when-a-substance-disappears-completely-as-a-gas-on-heating-6a00aa09db22397c61e7daaa</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2020-2021/vulcanization-involves-the-removal-of-6a00aa09db22397c61e7daab</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2020-2021/a-pure-solid-usually-melts-6a00aa09db22397c61e7daac</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2020-2021/a-small-quantity-of-solid-ammonium-chloride-was-heated-6a00aa09db22397c61e7daad</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2020-2021/ch-4-has-this-geometry-6a00aa09db22397c61e7daae</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2019-2020</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2019-2020/a-common-characteristic-shared-by-iron-and-aluminium-is-that-6a00aa09db22397c61e7da91</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2019-2020/pure-substances-are-obtained-by-6a00aa09db22397c61e7da92</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2019-2020/a-solution-of-sodium-trioxocarbonate-iv-contains-10-6g-in-6a00aa09db22397c61e7da93</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2019-2020/how-many-moles-of-limestone-will-be-required-to-produce-5-6g-6a00aa09db22397c61e7da94</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2019-2020/when-water-boilers-are-used-for-a-long-period-of-time-the-6a00aa09db22397c61e7da95</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2019-2020/the-general-methods-of-preparing-salts-include-i-6a00aa09db22397c61e7da96</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2019-2020/how-many-isomers-can-be-obtained-from-c-4-h-10-6a00aa09db22397c61e7da97</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2019-2020/the-minimum-amount-of-energy-required-for-a-reaction-to-take-6a00aa09db22397c61e7da98</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2019-2020/which-of-the-following-gases-dissolves-in-water-vapour-to-6a00aa09db22397c61e7da99</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2019-2020/the-oxidation-state-of-s-in-ca-hso-3-2-is-6a00aa09db22397c61e7da9a</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2019-2020/the-inert-gases-are-in-water-6a00aa09db22397c61e7da9b</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2019-2020/the-luster-of-a-metal-is-due-to-6a00aa09db22397c61e7da9c</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2019-2020/25cm-3-of-a-gas-x-contain-z-molecules-at-1500c-and-75mmhg-6a00aa09db22397c61e7da9d</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2019-2020/an-oxide-xo-2-has-a-vapour-density-of-32-what-is-the-atomic-6a00aa09db22397c61e7da9e</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2019-2020/the-process-of-converting-start-to-ethanol-is-known-as-6a00aa09db22397c61e7da9f</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-1</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-1/kerosene-is-commonly-used-to-remove-the-red-colour-stain-of-6a00aa09db22397c61e7da73</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-1/the-most-suitable-metal-that-can-be-used-as-a-lightning-6a00aa09db22397c61e7da74</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-1/equal-moles-of-ethyne-and-hyrogen-iodide-react-to-give-6a00aa09db22397c61e7da75</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-1/the-air-around-smelting-industries-is-likely-to-contain-6a00aa09db22397c61e7da76</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-1/the-gas-that-is-the-most-dangerous-pollutant-to-humans-is-6a00aa09db22397c61e7da77</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-1/the-shape-of-the-hydrocarbon-compound-ch-4-is-6a00aa09db22397c61e7da78</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-1/nh-4-cl-s-nh-3-g-hcl-the-reaction-above-can-only-attain-6a00aa09db22397c61e7da79</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-1/water-has-the-ability-to-dissolve-almost-all-substances-6a00aa09db22397c61e7da7a</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-1/the-property-used-in-the-industrial-preparation-of-nitrogen-6a00aa09db22397c61e7da7b</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-1/h-2-g-br-2-g-2hbr-g-the-reaction-above-is-carried-out-at-25-6a00aa09db22397c61e7da7c</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-1/an-emulsion-may-be-produced-by-shaking-a-detergent-solution-6a00aa09db22397c61e7da7d</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-1/which-of-the-following-methods-can-be-used-to-obtain-pure-6a00aa09db22397c61e7da7e</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-1/an-increase-in-entropy-can-best-be-illustrated-by-6a00aa09db22397c61e7da7f</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-1/0-05mol-dm-3-is-neutralized-by-25cm-3-naoh-if-the-volume-of-6a00aa09db22397c61e7da80</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-1/alkanals-can-be-distinguished-from-alkanones-by-the-reaction-6a00aa09db22397c61e7da81</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-2</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-2/three-drops-of-a-1-0-ml-dm-3-solution-of-hcl-was-added-to-6a00aa09db22397c61e7da82</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-2/the-minimum-amount-of-energy-required-for-a-reaction-to-take-6a00aa09db22397c61e7da83</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-2/an-organic-compound-contains-60-carbon-13-3-hydrogen-and-26-6a00aa09db22397c61e7da84</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-2/the-major-product-formed-by-the-reaction-between-ethanoic-6a00aa09db22397c61e7da85</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-2/reduction-is-the-process-of-6a00aa09db22397c61e7da86</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-2/the-isomers-of-c-3-h-8-o-are-6a00aa09db22397c61e7da87</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-2/on-heating-which-of-the-following-compounds-will-decompose-6a00aa09db22397c61e7da88</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-2/the-raw-material-used-for-the-smelting-of-iron-ore-in-a-6a00aa09db22397c61e7da89</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-2/the-sulphide-which-is-insoluble-in-dilute-hydrochloric-acid-6a00aa09db22397c61e7da8a</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-2/in-the-industrial-production-of-h-2-from-natural-gas-the-co-6a00aa09db22397c61e7da8b</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-2/which-of-the-following-typically-represents-a-photochemical-6a00aa09db22397c61e7da8c</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-2/a-given-volume-of-oxygen-diffused-through-a-porous-partition-6a00aa09db22397c61e7da8d</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-2/what-is-the-change-in-oxidation-number-of-manganese-in-the-6a00aa09db22397c61e7da8e</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-2/which-of-the-following-elements-is-a-d-block-element-6a00aa09db22397c61e7da8f</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2018-2019-model-2/which-of-the-following-factors-would-not-affect-the-6a00aa09db22397c61e7da90</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-1</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-1/stainless-steel-is-used-for-making-6a00aa09db22397c61e7da55</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-1/the-product-formed-at-the-cathode-during-the-electrolysis-of-6a00aa09db22397c61e7da56</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-1/the-alkanol-obtained-from-the-production-of-soap-is-6a00aa09db22397c61e7da57</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-1/some-metals-are-extracted-form-their-ores-after-some-6a00aa09db22397c61e7da58</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-1/which-of-the-following-will-liberate-hydrogen-from-steam-or-6a00aa09db22397c61e7da59</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-1/the-colour-of-metyl-orange-in-alkaline-medium-is-6a00aa09db22397c61e7da5a</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-1/a-compound-contains-40-0-carbon-6-7-hydrogen-and-53-3-oxygen-6a00aa09db22397c61e7da5b</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-1/which-of-these-represents-a-redox-reaction-6a00aa09db22397c61e7da5c</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-1/the-acid-that-is-used-to-remove-rust-is-6a00aa09db22397c61e7da5d</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-1/a-compound-commonly-used-for-the-sterilization-and-6a00aa09db22397c61e7da5e</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-1/the-relative-mass-of-a-naturally-occuring-lithium-consisting-6a00aa09db22397c61e7da5f</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-1/which-of-the-allotropes-of-carbon-is-a-constituent-of-a-lead-6a00aa09db22397c61e7da60</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-1/coffee-stains-can-best-be-removed-by-6a00aa09db22397c61e7da61</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-1/iron-can-be-prevented-from-corrosion-by-coating-the-surface-6a00aa09db22397c61e7da62</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-1/substances-used-as-drying-agents-are-usually-6a00aa09db22397c61e7da63</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-2</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-2/which-of-the-following-is-used-to-hasten-the-ripening-of-6a00aa09db22397c61e7da64</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-2/the-products-of-the-combustion-of-candle-wax-are-6a00aa09db22397c61e7da65</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-2/in-the-electrolytic-extraction-of-aluminium-the-function-of-6a00aa09db22397c61e7da66</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-2/a-suitable-solvent-for-iodine-and-naphthalene-is-6a00aa09db22397c61e7da67</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-2/what-is-the-iupac-name-of-the-hydrocarbon-6a00aa09db22397c61e7da68</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-2/which-of-the-following-molecules-is-not-linear-in-shape-6a00aa09db22397c61e7da69</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-2/which-of-the-following-reactions-do-alkenes-undergo-6a00aa09db22397c61e7da6a</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-2/which-of-the-following-arrangements-is-in-order-of-6a00aa09db22397c61e7da6b</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-2/how-much-heat-will-be-liberated-if-10g-of-hydrogen-burns-in-6a00aa09db22397c61e7da6c</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-2/what-type-of-bond-exists-between-an-element-x-with-atomic-6a00aa09db22397c61e7da6d</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-2/which-of-the-following-is-an-example-of-a-mixture-6a00aa09db22397c61e7da6e</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-2/which-of-the-following-is-correct-of-the-change-in-oxidation-6a00aa09db22397c61e7da6f</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-2/two-50cm-3-cylinders-i-and-ii-contain-hydrogen-and-oxygen-6a00aa09db22397c61e7da70</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-2/a-good-method-of-cleaning-up-freshly-spilled-oil-which-has-6a00aa09db22397c61e7da71</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2017-2018-day-2/hardness-of-water-is-usually-due-to-the-presence-of-6a00aa09db22397c61e7da72</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-1</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-1/2so-2-g-o-2-g-2so-3-h-395-7kj-mol-in-the-reaction-above-the-6a00aa09db22397c61e7da37</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-1/which-of-the-following-compounds-is-a-normal-salt-6a00aa09db22397c61e7da38</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-1/which-of-the-following-ions-can-be-used-as-an-oxidizing-6a00aa09db22397c61e7da39</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-1/co-2-g-h-2-o-co-2-g-h-2-g-calculate-the-standard-heat-change-6a00aa09db22397c61e7da3a</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-1/ch-3-ch-2cl-kcn-ch-3-ch-2-cn-kcl-in-the-reaction-above-the-6a00aa09db22397c61e7da3b</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-1/the-bleaching-action-of-chlorine-gas-is-effective-due-to-the-6a00aa09db22397c61e7da3c</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-1/which-of-the-following-pairs-of-substances-will-react-6a00aa09db22397c61e7da3d</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-1/the-salt-formed-between-citric-acid-and-sodium-hydroxide-in-6a00aa09db22397c61e7da3e</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-1/on-exposure-to-the-atmosphere-a-hydrated-salt-loses-its-6a00aa09db22397c61e7da3f</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-1/vulcanization-involves-the-removal-of-6a00aa09db22397c61e7da40</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-1/in-an-equilibrium-reaction-which-of-the-following-conditions-6a00aa09db22397c61e7da41</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-1/2c-2-h-2-g-so-2-g-4co-2-g-2h-2-o-g-in-the-reaction-above-the-6a00aa09db22397c61e7da42</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-1/cu-2-aq-4nh-3-g-cu-nh-3-4-2-aq-in-the-reaction-above-what-is-6a00aa09db22397c61e7da43</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-1/use-the-diagram-below-to-answer-questions-14-and-15-which-of-6a00aa09db22397c61e7da44</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-1/use-the-diagram-below-to-answer-questions-14-and-15-the-6a00aa09db22397c61e7da45</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-2</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-2/the-basicity-of-ch-3-cooh-is-6a00aa09db22397c61e7da46</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-2/ethanol-reacts-with-conc-tetraoxosulphate-vi-acid-at-a-high-6a00aa09db22397c61e7da47</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-2/the-type-of-bonding-in-iodine-molecule-is-6a00aa09db22397c61e7da48</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-2/the-acid-used-in-electrolysis-of-water-is-6a00aa09db22397c61e7da49</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-2/in-the-diagram-above-which-of-the-curves-represents-the-6a00aa09db22397c61e7da4a</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-2/in-the-laboratory-preparation-of-oxygen-dried-oxygen-is-6a00aa09db22397c61e7da4b</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-2/the-elements-that-belong-to-the-third-period-of-the-periodic-6a00aa09db22397c61e7da4c</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-2/synthetic-gas-is-a-mixture-of-6a00aa09db22397c61e7da4d</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-2/which-of-the-following-is-a-neutralization-reaction-the-6a00aa09db22397c61e7da4e</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-2/a-metal-x-forms-two-bromides-with-formulae-xbr-2-and-xbr-3-6a00aa09db22397c61e7da4f</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-2/calculate-the-mass-of-1-12dm-3-of-chlorine-gas-6a00aa09db22397c61e7da50</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-2/the-sulphide-which-is-insoluble-in-dilute-hydrochloric-acid-6a00aa09db22397c61e7da51</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-2/what-is-the-ph-of-a-0-001-moldm-3-solution-of-sodium-6a00aa09db22397c61e7da52</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-2/the-type-of-isomerism-shown-by-cis-and-trans-isomers-is-6a00aa09db22397c61e7da53</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2015-2016-day-2/which-of-the-following-statements-is-true-about-2-6a00aa09db22397c61e7da54</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2014-2015-day-2</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2014-2015-day-2/a-mixture-of-sand-ammonium-chloride-and-sodium-chloride-is-6a00aa09db22397c61e7da23</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2014-2015-day-2/which-of-the-following-elements-is-common-to-bronze-and-soft-6a00aa09db22397c61e7da24</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2014-2015-day-2/a-solution-of-calcium-bromide-contains-20g-dm-3-what-is-the-6a00aa09db22397c61e7da25</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2014-2015-day-2/haze-is-an-example-of-6a00aa09db22397c61e7da26</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2014-2015-day-2/the-volume-of-0-20moldm-3-h-2-h-2-so-4-that-will-exactly-6a00aa09db22397c61e7da27</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2014-2015-day-2/if-the-relative-rate-of-diffusion-of-a-gas-is-0-25-and-that-6a00aa09db22397c61e7da28</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2014-2015-day-2/the-oxidation-states-of-chlorine-in-hocl-hclo-3-and-hclo-4-6a00aa09db22397c61e7da29</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2014-2015-day-2/what-is-the-sign-of-h-and-s-in-the-following-reaction-c-s-o-6a00aa09db22397c61e7da2a</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2014-2015-day-2/in-the-periodic-table-what-is-the-property-that-decreases-6a00aa09db22397c61e7da2b</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2014-2015-day-2/rusting-of-iron-is-6a00aa09db22397c61e7da2c</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2014-2015-day-3</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2014-2015-day-3/hydration-of-ions-in-solution-is-associated-with-6a00aa09db22397c61e7da2d</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2014-2015-day-3/a-current-was-passed-for-10mins-20secs-and-0-1mole-of-cu-was-6a00aa09db22397c61e7da2e</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2014-2015-day-3/what-is-the-ph-of-0-001moldm-3-of-h-2-so-4-6a00aa09db22397c61e7da2f</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2014-2015-day-3/if-a-reaction-is-exothermic-and-there-is-great-disorder-it-6a00aa09db22397c61e7da30</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2014-2015-day-3/the-gasification-of-coke-is-used-for-the-manufacture-6a00aa09db22397c61e7da31</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2014-2015-day-3/which-of-the-following-is-arranged-in-order-of-increasing-6a00aa09db22397c61e7da32</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2014-2015-day-3/calculate-the-molecular-formula-of-a-hydrocarbon-with-molar-6a00aa09db22397c61e7da33</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2014-2015-day-3/which-of-these-can-be-used-in-removing-oil-stains-6a00aa09db22397c61e7da34</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2014-2015-day-3/the-position-of-equilibrium-in-a-reversible-reaction-is-6a00aa09db22397c61e7da35</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2014-2015-day-3/which-of-the-following-solutions-containing-only-hydroxyl-6a00aa09db22397c61e7da36</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2012-2013</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2012-2013/which-of-the-following-statements-is-incorrect-6a00aa09db22397c61e7da14</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2012-2013/20g-of-calcium-trioxocarbonate-iv-is-heated-to-constant-mass-6a00aa09db22397c61e7da15</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2012-2013/the-vapour-pressure-of-water-at-15-c-is-13mmhg-at-a-6a00aa09db22397c61e7da16</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2012-2013/elements-x-y-and-z-belong-to-groups-i-v-and-vi-respectively-6a00aa09db22397c61e7da17</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2012-2013/which-of-the-following-is-a-double-salt-6a00aa09db22397c61e7da18</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2012-2013/find-the-value-of-n-in-the-equation-xo-n-3-4h-3e-xo-2h-2-6a00aa09db22397c61e7da19</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2012-2013/corrosion-in-metals-is-an-example-of-6a00aa09db22397c61e7da1a</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2012-2013/an-example-of-a-suspension-of-solid-particles-in-a-gas-is-6a00aa09db22397c61e7da1b</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2012-2013/in-which-of-the-following-is-the-change-in-entroypy-positive-6a00aa09db22397c61e7da1c</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2012-2013/2so-2-g-o-2-g-2so-3-g-h-ve-the-formation-of-so-3-in-the-6a00aa09db22397c61e7da1d</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2012-2013/when-238-92-u-emits-and-x-ray-and-a-b-ray-the-product-x-has-6a00aa09db22397c61e7da1e</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2012-2013/the-producer-gas-is-a-mixture-of-6a00aa09db22397c61e7da1f</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2012-2013/the-iupac-name-of-the-compound-below-is-h-3-cch-ch-3-chchch-6a00aa09db22397c61e7da20</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2012-2013/ethanol-reacts-with-aqueous-sodium-oxoiodate-i-to-give-a-6a00aa09db22397c61e7da21</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2012-2013/plastics-which-lose-their-plasticity-on-being-subjected-to-6a00aa09db22397c61e7da22</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-1</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-1/crystallization-is-a-better-method-of-separation-than-6a00aa09db22397c61e7d9f6</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-1/which-of-the-following-is-not-a-chemical-change-6a00aa09db22397c61e7d9f7</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-1/an-important-ore-of-iron-contains-72-36-iron-and-27-64-6a00aa09db22397c61e7d9f8</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-1/which-of-the-following-decreases-when-a-given-mass-of-gas-is-6a00aa09db22397c61e7d9f9</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-1/the-densities-of-two-gases-x-and-y-are-2-5gdm-3-and-10-0gdm-6a00aa09db22397c61e7d9fa</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-1/the-properties-of-elements-are-periodic-functions-of-their-6a00aa09db22397c61e7d9fb</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-1/which-of-the-following-solutions-containing-only-hydroxyl-6a00aa09db22397c61e7d9fc</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-1/in-the-redox-reaction-2fe-2-cl-2-2fe-3-2cl-6a00aa09db22397c61e7d9fd</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-1/during-electrolysis-of-molten-sodium-chloride-6a00aa09db22397c61e7d9fe</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-1/coffee-stains-are-removed-with-6a00aa09db22397c61e7d9ff</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-1/what-is-the-value-of-h-for-this-reaction-fe-2-o-3-s-3h-2-o-l-6a00aa09db22397c61e7da00</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-1/n-2-g-o-harr-2no-2-g-h-ve-what-happens-to-the-equilibrium-6a00aa09db22397c61e7da01</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-1/radioisotopes-are-used-for-the-following-except-6a00aa09db22397c61e7da02</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-1/the-common-characteristics-shared-by-iron-and-aluminium-is-6a00aa09db22397c61e7da03</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-1/in-the-reaction-h-2-c-ch-2hbr-x-x-is-6a00aa09db22397c61e7da04</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-2</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-2/the-separation-of-oil-and-water-with-different-boiling-6a00aa09db22397c61e7da05</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-2/calculate-the-minimum-volume-of-oxygen-that-is-required-for-6a00aa09db22397c61e7da06</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-2/an-increase-in-temperature-causes-an-increase-in-the-6a00aa09db22397c61e7da07</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-2/a-liquid-begins-to-boil-when-6a00aa09db22397c61e7da08</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-2/if-the-relative-rate-of-diffusion-of-a-gas-is-0-25-and-that-6a00aa09db22397c61e7da09</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-2/the-following-molecules-contain-hydrogen-bonding-except-6a00aa09db22397c61e7da0a</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-2/if-20cm-3-of-distilled-water-is-added-to-80cm-3-of-0-50cmol-6a00aa09db22397c61e7da0b</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-2/what-is-h-2-o-2-acting-as-in-the-equation-below-h-2-o-2-2h-6a00aa09db22397c61e7da0c</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-2/a-current-was-passed-for-10mins-20secs-and-0-1-mole-of-cu-6a00aa09db22397c61e7da0d</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-2/which-of-the-following-statements-is-correct-6a00aa09db22397c61e7da0e</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-2/no-g-co-g-n-2-g-co-2-g-h-89-3-kj-what-conditions-would-6a00aa09db22397c61e7da0f</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-2/which-of-the-alloys-below-does-not-contain-copper-6a00aa09db22397c61e7da10</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-2/2al-s-2naoh-aq-6h-2-o-l-2naal-oh-3-aq-3h-2-g-from-the-6a00aa09db22397c61e7da11</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-2/ethanol-reacts-with-aqueous-soidum-oxoiodate-i-to-give-a-6a00aa09db22397c61e7da12</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2010-2011-day-2/an-alkanoic-acid-has-a-molar-mass-of-102g-derive-its-6a00aa09db22397c61e7da13</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2009-2010</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2009-2010/the-presence-of-nacl-in-ice-will-6a00aa09db22397c61e7d9e7</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2009-2010/what-are-the-values-of-x-y-and-z-in-the-equation-below-xnh-3-6a00aa09db22397c61e7d9e8</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2009-2010/calculate-the-volume-of-co-2-measured-at-s-t-p-produced-on-6a00aa09db22397c61e7d9e9</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2009-2010/the-boiling-points-of-water-ethanol-methylbenzene-and-butan-6a00aa09db22397c61e7d9ea</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2009-2010/the-conclusion-from-rutherford-s-alpha-scattering-experiment-6a00aa09db22397c61e7d9eb</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2009-2010/elements-p-q-and-r-have-atomic-numbers-9-16-and-20-6a00aa09db22397c61e7d9ec</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2009-2010/which-of-the-following-has-the-lowest-ph-6a00aa09db22397c61e7d9ed</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2009-2010/which-of-the-following-is-an-acid-salt-6a00aa09db22397c61e7d9ee</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2009-2010/cro-2-14h-6i-2cr-2-3i-2-7h-2-o-the-change-in-the-oxidation-6a00aa09db22397c61e7d9ef</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2009-2010/during-the-electrolysis-of-cuso-4-solution-using-platinum-6a00aa09db22397c61e7d9f0</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2009-2010/which-of-the-following-ions-is-a-pollution-in-drinking-water-6a00aa09db22397c61e7d9f1</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2009-2010/the-solubility-of-a-salt-of-molar-mass-100g-at-20-c-is-0-6a00aa09db22397c61e7d9f2</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2009-2010/catalyst-is-important-in-chemical-industry-in-that-6a00aa09db22397c61e7d9f3</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2009-2010/an-alkanoic-acid-has-a-molecular-mass-of-88-name-the-acid-c-6a00aa09db22397c61e7d9f4</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2009-2010/ethyne-undergoes-the-following-reactions-except-6a00aa09db22397c61e7d9f5</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2008-2009</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2008-2009/what-are-the-values-of-p-q-r-and-s-respectively-in-the-6a00aa09db22397c61e7d9d8</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2008-2009/khco-3-is-contaminated-with-k-2-co-3-as-impurity-if-2-5g-of-6a00aa09db22397c61e7d9d9</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2008-2009/the-partial-pressure-of-n-2-in-a-container-at-50-c-in-which-6a00aa09db22397c61e7d9da</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2008-2009/the-major-reason-why-chemical-reaction-occurs-among-elements-6a00aa09db22397c61e7d9db</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2008-2009/given-that-the-ph-of-a-solution-of-koh-is-12-what-is-the-6a00aa09db22397c61e7d9dc</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2008-2009/which-of-the-following-salt-has-a-ph-less-than-7-6a00aa09db22397c61e7d9dd</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2008-2009/in-which-of-the-following-reactions-does-hydrogen-peroxide-6a00aa09db22397c61e7d9de</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2008-2009/temporary-hardness-of-water-is-removed-by-the-use-of-the-6a00aa09db22397c61e7d9df</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2008-2009/hydration-of-ions-in-addition-is-associated-with-6a00aa09db22397c61e7d9e0</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2008-2009/a-piece-of-radioactive-element-has-initially-8-0-x-10-23-6a00aa09db22397c61e7d9e1</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2008-2009/which-of-the-following-pairs-of-substances-are-hygroscopic-6a00aa09db22397c61e7d9e2</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2008-2009/zinc-is-not-regarded-as-a-transition-metal-even-though-it-is-6a00aa09db22397c61e7d9e3</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2008-2009/silver-chloride-turns-grey-when-exposed-to-sunlight-because-6a00aa09db22397c61e7d9e4</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2008-2009/which-of-these-compounds-exhibits-resonance-6a00aa09db22397c61e7d9e5</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2008-2009/hydrolysis-of-ch-3-cooch-2-ch-3-in-dilute-hcl-produces-6a00aa09db22397c61e7d9e6</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2007-2008</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2007-2008/two-immiscible-liquids-with-different-boiling-points-can-be-6a00aa09db22397c61e7d9c9</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2007-2008/a-mixture-of-cacl-2-and-caco-3-in-water-can-be-separated-by-6a00aa09db22397c61e7d9ca</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2007-2008/consider-the-reaction-represented-by-xpb-no-3-2-2pbo-yno-2-6a00aa09db22397c61e7d9cb</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2007-2008/20cm-3-of-h-2-mixed-and-separated-with-100cm-3-of-air-6a00aa09db22397c61e7d9cc</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2007-2008/what-is-responsible-for-metallic-bonding-6a00aa09db22397c61e7d9cd</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2007-2008/25cm-3-of-1-5m-solution-of-nacl-are-added-to-50cm-3-of-3m-6a00aa09db22397c61e7d9ce</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2007-2008/a-solution-of-salt-formed-from-hcl-and-nh-3-solutions-is-6a00aa09db22397c61e7d9cf</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2007-2008/which-of-the-following-elements-will-burn-in-excess-oxygen-6a00aa09db22397c61e7d9d0</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2007-2008/a-current-was-passed-for-10-mins-and-0-2-mole-of-cu-was-6a00aa09db22397c61e7d9d1</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2007-2008/pollution-of-underground-water-by-metal-ions-is-very-likely-6a00aa09db22397c61e7d9d2</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2007-2008/producer-gas-is-a-gas-with-low-calorific-value-because-it-6a00aa09db22397c61e7d9d3</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2007-2008/for-most-reversible-reactions-6a00aa09db22397c61e7d9d4</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2007-2008/which-of-the-following-compounds-will-leave-a-metal-residue-6a00aa09db22397c61e7d9d5</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2007-2008/which-of-the-polymers-contains-nitrogen-6a00aa09db22397c61e7d9d6</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2007-2008/a-red-precipitate-of-copper-i-dicarbide-is-formed-when-6a00aa09db22397c61e7d9d7</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2006-2007-day-1</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2006-2007-day-1/a-mixture-of-iron-and-sulphur-can-be-separated-by-dissolving-6a00aa09db22397c61e7d9ba</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2006-2007-day-1/if-67-5g-of-oxide-of-lead-was-reduced-to-61-2g-of-metal-6a00aa09db22397c61e7d9bb</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2006-2007-day-1/calculate-the-minimum-volume-of-the-oxygen-that-is-required-6a00aa09db22397c61e7d9bc</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2006-2007-day-1/hno-3-h-2-o-rarr-h-3-o-no-3-in-the-reaction-above-no-3-is-6a00aa09db22397c61e7d9bd</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2006-2007-day-1/the-ph-range-of-a-neutralization-product-of-the-ch-3-cooh-6a00aa09db22397c61e7d9be</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2006-2007-day-1/how-much-naoh-is-required-to-make-250cm-3-of-0-1mol-dm-3-6a00aa09db22397c61e7d9bf</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2006-2007-day-1/2pbo-2-2pbo-o-2-in-the-equation-above-the-oxidizing-agent-is-6a00aa09db22397c61e7d9c0</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2006-2007-day-1/a-current-of-0-5a-flows-for-1930-seconds-and-deposits-0-325g-6a00aa09db22397c61e7d9c1</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2006-2007-day-1/emission-of-chlorofluorocarbon-cfc-into-the-atmosphere-6a00aa09db22397c61e7d9c2</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2006-2007-day-1/the-diagram-above-shows-the-reaction-path-of-an-exothermic-6a00aa09db22397c61e7d9c3</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2006-2007-day-1/which-of-the-following-samples-will-react-fastest-with-6a00aa09db22397c61e7d9c4</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2006-2007-day-1/the-colour-exhibited-by-copper-in-a-flame-test-is-6a00aa09db22397c61e7d9c5</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2006-2007-day-1/which-of-the-following-statements-is-correct-6a00aa09db22397c61e7d9c6</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2006-2007-day-1/the-iupac-name-for-is-6a00aa09db22397c61e7d9c7</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2006-2007-day-1/3-methylbutan-2-one-is-an-isomer-of-6a00aa09db22397c61e7d9c8</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2005-2006-day-1</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2005-2006-day-1/which-of-the-following-is-a-mixture-6a00aa09db22397c61e7d9ab</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2005-2006-day-1/two-elements-x-and-y-have-atomic-numbers-8-and-13-6a00aa09db22397c61e7d9ac</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2005-2006-day-1/3g-of-a-mixture-of-cao-and-caco-3-was-heated-to-a-constant-6a00aa09db22397c61e7d9ad</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2005-2006-day-1/an-alkanoic-acid-has-a-molecular-mass-of-88-its-molecular-6a00aa09db22397c61e7d9ae</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2005-2006-day-1/if-the-rate-of-diffusion-of-oxygen-is-taken-as-1cm-3-s-what-6a00aa09db22397c61e7d9af</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2005-2006-day-1/an-increase-in-temperature-causes-an-increase-in-the-6a00aa09db22397c61e7d9b0</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2005-2006-day-1/in-electrolysis-the-chemical-reaction-which-takes-place-at-6a00aa09db22397c61e7d9b1</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2005-2006-day-1/in-the-electrolysis-of-brine-it-is-essential-to-prevent-the-6a00aa09db22397c61e7d9b2</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2005-2006-day-1/in-what-way-is-equilibrium-constant-for-the-forward-reaction-6a00aa09db22397c61e7d9b3</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2005-2006-day-1/when-chlorine-water-is-exposed-to-sunlight-the-gas-evolved-6a00aa09db22397c61e7d9b4</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2005-2006-day-1/pbcl-2-does-not-dissolve-in-liquid-ammonia-while-agcl-does-6a00aa09db22397c61e7d9b5</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2005-2006-day-1/when-sodium-hydroxide-pellets-are-exposed-to-the-atmosphere-6a00aa09db22397c61e7d9b6</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2005-2006-day-1/what-is-the-iupac-name-of-the-hydrocarbon-table-ch-3-c-ch-ch-6a00aa09db22397c61e7d9b7</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2005-2006-day-1/which-of-the-following-is-not-a-monomer-6a00aa09db22397c61e7d9b8</loc><lastmod>2026-05-10</lastmod></url>
  <url><loc>https://teacha.io/past-questions/putme_unn/chemistry-hfaqiigzqw/2005-2006-day-1/which-of-the-following-behaves-like-ethyne-6a00aa09db22397c61e7d9b9</loc><lastmod>2026-05-10</lastmod></url>
</urlset>