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Chemistry JAMB Past Questions

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1621
From the diagram above the mass of crystals deposited when 1 dm 3 of a saturated solution of NaCl is cooled from 80 oC to 60oC is
[Na = 23, Cl = 35.5]
  • A. 117.00 g
  • B. 58.50 g
  • C. 11.70 g
  • D. 5.85 g
View Answer & Discuss (12) JAMB 1999
1622
In the diagram above, Y is a mixture of
  • A. calcium hydroxide and ammonium chloride
  • B. calcuim hydroxide and sodium chloride
  • C. sodium chloride and ammonuim trioxonitrate (V)
  • D. sodium dioxonitrate (lll) and ammouium chloride
View Answer & Discuss (7) JAMB 1999
1623

Use the table above to answer this question . The element that is likely to participate in covalent rather than ionic bonding is

  • A. Z
  • B. Y
  • C. X
  • D. W
View Answer & Discuss (13) JAMB 1999
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1624
Use the table above to answer this question .The least reactive element is
  • A. W
  • B. X
  • C. Y
  • D. Z
View Answer & Discuss (3) JAMB 1999
1625

In the diagram above, the mixture of the solids P and Q can be separated by?

  • A. distillation
  • B. fractional distillation
  • C. crystallization
  • D. fractional crystallization
View Answer & Discuss (20) JAMB 1999
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