Teacha
  • Courses
  • Mock Exams
  • For Tutors
  • For Schools
  • Pricing
Log InStart Free
  1. Past Questions
  2. /
  3. BUK
  4. /
  5. Chemistry
  6. /
  7. 2009/2010
  8. /
  9. Q79
Question 79

Manganese(iv)oxide reacts with concentrated hydrochloric acid according to the equation MnO2 + XHCl ⟶ MnCl + Cl2 + YH2O. X and Y are

  • A. 2 and 5 respectively
  • B. 2 and 4 respectively
  • C. 1 and 2 respectively
  • D. 4 and 2 respectively
Objective

Question details

Exam body
BUK
Subject
Chemistry
Year
2009/2010
Question no.
#79
Type
Objective
Previous · Q78An organic compound with a vapor density of 56.5 has the following percentage… Next · Q80 A molar solution of caustic soda is prepared by dissolving

More from this paper

  • Q76Sodium chloride may be obtained from brine by
  • Q7720cm 3 of hydrogen gas are sparked with 20cm 3 of oxygen gaas in an endiometer…
  • Q81Which of the elements -1.Carbon 2. Oxygen 3. Copper 4. Bromine 5. Zinc will not…
  • Q82Lime water which is used in laboratory detection of carbon(iv)oxide is an…
  • Q83An element that can exist in two or more different structural forms which…
  • Q84The hybridization of carbon in ethyne is
See all Chemistry 2009/2010 questions
Teacha

Africa's learning & exam readiness platform. Built for students, tutors, and schools.

Platform

  • Courses
  • Mock Exams
  • Past Questions

For You

  • I'm a Tutor
  • I'm a School
  • Pricing

© 2025 Teacha. Built for African learners, tutors, and schools. Teacha is not affiliated with WAEC, NECO, or JAMB. All past questions are sourced from publicly available materials.

Privacy PolicyTerms of UseCookie Policy