Pure And Impure Substances Jamb Chemistry Past Questions

Question 1

Which of the following are mixtures?

I. Petroleum

II. Rubber latex

III. Vulcanizer's solution

IV. Carbon sulphide

jamb 2018

  • A. Petroleum
  • B. I, II and III
  • C. I, II and IV
  • D. I and II only
  • E. I and IV
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Question 2

Which of the following is a physical change?

jamb 2019

  • A. Exposing white phosphorus to air
  • B. Burning kerosene
  • C. Dissolving calcium in water
  • D. Freezing ice cream
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