Teacha
  • Courses
  • Mock Exams
  • For Tutors
  • For Schools
  • Pricing
Log InStart Free
  1. Past Questions
  2. /
  3. UNIBEN
  4. /
  5. General Paper
  6. /
  7. 2020/2021
  8. /
  9. Q23
Question 23

The addition of water to calcium oxide leads to

  • A.a physical change
  • B.a chemical change
  • C.the formation of a mixture
  • D.an endothermic change
Objective

Question details

Exam body
UNIBEN
Subject
General Paper
Year
2020/2021
Question no.
#23
Type
Objective
Previous · Q22Radioactive changes differ from ordinary chemical changes in that radioactive… Next · Q24 A colourless solution was tested with Tollen's reagent, the colourless solution…

More from this paper

  • Q19When a ship sails from salt water to fresh water, the fraction of its volume…
  • Q20The velocity ratio of a machine is 5 and its efficiency is 75%. What effort…
  • Q21A 50.0mg supply of iodine -131, used in hospital in the treatment of…
  • Q25The metal used to recover copper from a solution of copper sulphate is
  • Q26The boiling point of a liquid such as methanol is the temperature at which its
  • Q27Alkenes and ________ are compounds that contain a multiple bond each.
See all General Paper 2020/2021 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