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Chemistry 2012 JAMB Past Questions

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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
11
Which of the following is used to study the arrangement of particles in crystal lattices?
  • A. Alpha-particles
  • B. Beta-particles
  • C. Gamma-rays
  • D. X-rays
View Answer & Discuss (3) JAMB 2012
12

I. It has a varied composition from one place to another. ll. it constituents can be separated by physical means
lll. It contains unreactive noble gases
which of the above shows that air is a mixture?

  • A. I and ll only
  • B. ll and lll only
  • C. l and lll only
  • D. l,lll and lll
View Answer & Discuss (10) JAMB 2012
13
The chemicals used to soften hard water involves the addition of
  • A. insoluble sodium compounds which from soluble solutions of calcium and magesium
  • B. solube soudium compounds which from soluble solutions of calcium and magnesium ions
  • C. solube sodium compounds which from insoluble precipitates of calcium and magnesium ions
  • D. insoluble precipitates of calcium and magnesium ions
View Answer & Discuss (3) JAMB 2012
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14
Chlorination of water for town supply is carried out to
  • A. make the water colourless
  • B. remove germs from the water
  • C. make the water tastedful
  • D. remove odour from the water
View Answer & Discuss (1) JAMB 2012
15
The solubilites of different solutes in a given solvent can be compared by
  • A. plotting their solubility curves on separete axes
  • B. plotting their solubility curves on the same axes
  • C. plotting some of the solubility curves on the x-axis and others on the y-axis
  • D. plotting their solubility curves on the x-axis only
View Answer & Discuss JAMB 2012
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