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Thursday, 02 April 2026
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Chemistry Past Questions and Answers

Jamb Chemistry Questions

Question 26:
Which of the gases is employed as an anaesthesia?
  • A N 2O
  • B NO2
  • C NH3
  • D NO
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Question 27:
Sulphur (IV)oxide is a strong reducing agent in the presence of water due to the formation of
  • A Hydroxide ion
  • B Sulpgur (Vl)oxide
  • C Hydrogen sulhide
  • D Trioxosulphate (IV) salt
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Question 28:
A metal that forms soluble trioxosulphate (IV) ion is
  • A Barium
  • B Potassium
  • C Manganese
  • D Aluminium
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Question 29:
Copper is displaced from the solution of its salts by most metals because it
  • A Is a transition element
  • B Is at the bottom of the activity series
  • C Is very reactive
  • D Has completely filled 3d-orbitals
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Question 30:
The coloured nature of transition metal ions are associated with their partially filled
  • A F- orbital
  • B S- orbital
  • C P-orbital
  • D D-orbital
View Answer & Explanation