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Chemistry 2022 JAMB Past Questions

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16

Zn + 2HCL → ZnCl\(_2\) + H\(_2\) 

What happens to zinc in the above reaction?

  • A. oxidized
  • B. a reactant
  • C. reduced
  • D. a metal
View Answer & Discuss (1) JAMB 2022
17

An organic functional group which can likely decolorize ammoniacal silver nitrate is?

  • A. alkene
  • B. alkane
  • C. alkyne
  • D. alkanol
View Answer & Discuss JAMB 2022
18

A colored gas that is known to be poisonous and can readily damage the mucous lining of the lungs is?

  • A. hydrogen sulphide
  • B. carbon(ii)oxide
  • C. chlorine
  • D. sulphur(iv)oxide
View Answer & Discuss (4) JAMB 2022
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19

In order to electroplate spoon with silver, the arrangement of the electrolytic cell is?

  • A. the anode is a silver rod and the cathode is the spoon
  • B. the anode is the spoon and the cathode is a silver rod
  • C. the electrolyte is silver trioxonitrate(v)( solution and the cathode is a silver rod.
  • D. the electrolyte is silver trioxonitrate(v) solution and the anode is the spoon
View Answer & Discuss (6) JAMB 2022
20

An organic compound which decolorizes bromine water is likely to be?

  • A. C\(_3\)H\(_8\)
  • B. C\(_2\)H\(_6\)
  • C. C\(_4\)H\(_10\)
  • D. C\(_2\)H\(_4\)
View Answer & Discuss (1) JAMB 2022
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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
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