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Chemistry 1989 JAMB Past Questions

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11
The gaseous pollutant sulphur (IV)oxide is most likely to be detected in fairly reasonable quantities in the area around a plant for the
  • A. extraction of aluminium from bauxite
  • B. production of margarine
  • C. smelting of copper
  • D. production of chlorine from brine
View Answer & Discuss (2) JAMB 1989
12

Calcium hydroxide is added in the treatment of town water supply to

  • A. kill bacteria in the water
  • B. facilitate coagulation of organic particles
  • C. facilitate sedimentation
  • D. improve the taste of the water
View Answer & Discuss (10) JAMB 1989
13

A hydrated salt of formula MSO4.xH2 O CONTAINS 45.3% by mass of water of crystalisation. Calculate the value of x [M = 56, S = 32, O = 16, H = 1 ]

  • A. 3
  • B. 5
  • C. 7
  • D. 10
View Answer & Discuss (15) JAMB 1989
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14

Using 50 cm\(^3\) of 1 M potassium hydroxide and 100 cm\(^3\) of 1 M tetraoxosulphate (VI) acid, calculate the respective volumes in cm\(^3\) of base and acid that would be required to produce the maximum amount of potassium tetraoxosulphate (IV) [K = 39, S = 32, O = 16, H = 1]

  • A. 50, 50
  • B. 25, 50
  • C. 50, 25
  • D. 25, 25
View Answer & Discuss (11) JAMB 1989
15

A solution of calcium bromide contains 20 g dm\(^3\). What is the molarity of the solution with respect to calcium bromide and bromide ions? [Ca = 40, Br = 80]

  • A. 0. 1, 0 . 1
  • B. 0. 1, 0. 2
  • C. 0. 1, 0. 05
  • D. 0.05, 0.1
View Answer & Discuss (12) JAMB 1989
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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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