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Chemistry Past Questions

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3021
In the laboratory preparation of chlorine from concentrated hydrochloric acid in the presence of potassuim tetraoxomanganate(VII) the produced is dried by passing it through
  • A. Concentrated tetraoxosulphate (VI) acid
  • B. Anhydrous calcium chloride
  • C. Calcium oxide
  • D. Sodium hydroxide
View Answer & Discuss (5) JAMB 2016
3022
The monomer of nylon is
  • A. Hydroxybenzene
  • B. Hexanedioic acid
  • C. Benzene -1,-4-dicarboxylic acid
  • D. Ethane-1,2-diol
View Answer & Discuss (7) JAMB 2016
3023
The principle of column chromatography is based on th ability of the constituents to
  • A. React with the solvent in the column
  • B. React with each other in the solvent in the column
  • C. Dissolve in each other in the column
  • D. Move at different speeds in the column
View Answer & Discuss (7) JAMB 2016
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3024
Ammonium chloride can be separated from its mixture with common salt by
  • A. Distillation
  • B. Evaporation
  • C. Decantation
  • D. Sublimation
View Answer & Discuss (4) JAMB 2016
3025
The ability of carbon to form long chains is referred to as
  • A. Alkylation
  • B. Acylation
  • C. Carbonation
  • D. Catenation
View Answer & Discuss (4) JAMB 2016
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