Teacha
  • Courses
  • Mock Exams
  • For Tutors
  • For Schools
  • Pricing
Log InStart Free
  1. Past Questions
  2. /
  3. DELSU
  4. /
  5. Chemistry
  6. /
  7. 2017/2018
  8. /
  9. Q3
Question 3

When sodium nitrite dissolves in water, ΔH is positive. This means that?

  • A.the reaction is catalyzed
  • B.the reaction is complete
  • C.the reaction is exothermic
  • D.the reaction is endothermic
Objective

Question details

Exam body
DELSU
Subject
Chemistry
Year
2017/2018
Question no.
#3
Type
Objective
Previous · Q2When Ammonium, potassium and calcium carbonates are each separately heated. Next · Q4 The catalyst used in the contact process for the manufacture of tetraxosulphate…

More from this paper

  • Q1Helium atoms are chemically unreactive because?
  • Q5The reaction between sulphur (iv) oxide and oxygen is represented by the…
  • Q6Which of the following raw materials would be required for the smelting of iron…
  • Q7The IUPAC nomenclature for the structure below is[DRAW CHEMICAL STRUCTURE]
See all Chemistry 2017/2018 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