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Wednesday, 17 June 2026
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Chemistry Past Questions and Answers

Post Utme Chemistry Questions

Question 226:
Which of the following gases has the same volume under the same condition as \(16 g\) of sulphur (IV) oxide? (H=4, C \(=12, N =14, O =16, S =32, Cl =35)\)
  • A \(8 g\) of hydrogen
  • B \(5.5 g\) of carbon( \(( VI )\) oxide
  • C \(11.0 g\) of carbon (IV) oxide
  • D \(5 g\) of nitrogen \(OH\)
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Question 227:
\(CH _{3}- CH - CH _{2}- CH _{2}- NH _{2}\). The two functional groups in the above compound are _____________
  • A Amino and carbonyl
  • B Carbonyl and hydroxyl
  • C Hydroxyl and carboxyl
  • D Hydroxyl and amine
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Question 228:
\(F ^{-1}\) would have a larger radius than fluorine atom, because of _____________
  • A Addition of an extra electron in \(F ^{-1}\)
  • B The ion was obtained after fluorine lost valence electron
  • C The effective nuclear charge of \(F ^{-1}\) is greater than that of \(F ^{-1}\)
  • D \(F\) is an ion while \(F\) is not.
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Question 229:
0 . 1 Faraday of electricity was passed through a solution copper(II) sulphate. The maximumeright of copper deposited on the cathode would be _____________
  • A \(63.Og\)
  • B 32 . Og
  • C 6.1 g\
  • D \(3.2 g\)
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Question 230:
What is the concentration of \(H ^{+}\)ion in mole's per \(dm 3\) of the solution of _____________
  • A \(4.0 \times 10^{-2}\)
  • B \(4.0 \times 10^{-3}\)
  • C \(4.0 \times 10^{-4}\)
  • D \(4.0 \times 10^{-6}\)
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