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Chemistry JAMB Past Questions

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1551

The I.U.P.A.C name for the compound

  • A. 2-methyl-3-pentene
  • B. 4-methyl-2-pentane
  • C. 2-methyl-2-pentene
  • D. 4-methylpent-2-ene
  • E. 2-methyl-3-pentane
View Answer & Discuss (9) JAMB 1985
1552
Use the following option above to answer this question. Which of the following is the functional group of carboxylic acids?
  • A. A
  • B. B
  • C. C
  • D. D
  • E. E
View Answer & Discuss (2) JAMB 1985
1553

In the solubility curve above, water at 98\(^0\)C is saturated with KCl and KCIO\(_3\). What is the percentage of KCl impurity in the crystals formed when the solution is cooled to 30\(^0\)C?

  • A. 51.5
  • B. 45.5
  • C. 34.5
  • D. 26.5
View Answer & Discuss (21) JAMB 1986
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1554
In the electrolysis of aqueous solution of K2SO 4 in the above cell, which species migrate to the anode?
  • A. SO2-OH -
  • B. K + and SO 4 2-
  • C. OH and HO
  • D. H3O + and K
View Answer & Discuss (2) JAMB 1986
1555
The tabulated results below were obtained by titration 10.0 cm3 of water with soup. The titration was repeated with the same sample of water after boiling. The ratio of permanent to temporary hardness is
  • A. 1.5
  • B. 1.4
  • C. 4.1
  • D. 5.1
View Answer & Discuss (21) JAMB 1986
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