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Chemistry JAMB Past Questions

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2136

N\(_2\)O\(_4\) ⇔ 2NO\(_2\)          (Δ = -ve)

From the reaction above, which of these conditions would produce the highest equilibrium yield for N\(_2\)O\(_4\)?

  • A. Low temperature and high pressure
  • B. Low temperature and low pressure
  • C. high temperature and low pressure
  • D. high temperature and high pressure
View Answer & Discuss (52) JAMB 2022
2137

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 (5) JAMB 2022
2138

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

  • A. alkene
  • B. alkane
  • C. alkyne
  • D. alkanol
View Answer & Discuss (2) JAMB 2022
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2139

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 (6) JAMB 2022
2140

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 (8) JAMB 2022
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