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Chemistry 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
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1546
Figure 1 above shows part of the periodic Table which of the elements belongs to the p-block?
  • A. S, T and U
  • B. V, W and X
  • C. S and T only
  • D. P, Q and R
  • E. V, W, X and S
View Answer & Discuss (4) JAMB 1985
1547

The diagram shown above represents the solubility curves of two salts, X and Y, in water, use this diagram to answer the question. At room temperature (300 K)

  • A. Y is twice as soluble as X
  • B. X is twice as soluble as Y
  • C. X and Y are soluble to the same extent
  • D. X is three times as soluble as Y
  • E. Y is three times as soluble as X
View Answer & Discuss (7) JAMB 1985
1548

The diagram shown above represents the solubility curves of two salts, X and Y, in water, use this diagram to answer the question. If 80 g each of X and Y are taken up in 100 g of water at 353 K we shall have

  • A. only 10g of X undissolved
  • B. only 16 g of Y undissolved
  • C. 10 g of X and 16 g of Y undissolved
  • D. all X and Y dissolved
  • E. all X and Y undissolved
View Answer & Discuss (2) JAMB 1985
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1549

The diagram shown above represents the solubility curves of two salts, X and Y, in water, use this diagram to answer the question. If the molar mass of X is 36 g, the number of moles of X dissolved at 343 K is

  • A. 0.2 moles
  • B. 0.7 moles
  • C. 1.5 moles
  • D. 2.0 moles
  • E. 3.0 moles
View Answer & Discuss (19) JAMB 1985
1550
Use the above options to the question. The products formed on hydrolysis of
  • A. A
  • B. B
  • C. C
  • D. D
  • E. E
View Answer & Discuss (10) JAMB 1985
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