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Friday, 03 April 2026
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Chemistry Past Questions and Answers

Jamb Chemistry Questions

Question 36:
A few drops of NaOH solution was added to an unknown salt forming a white precipitate which is insoluble in excess solution. The cation likely present is
  • A Zn2+
  • B Pb2+
  • C Ca2+
  • D Al3+
View Answer & Explanation
Question 37:
The general formula of haloalkanes where X represents the halide is
  • A Cn H 2n-1X.
  • B C nH 2nX.
  • C C nH 2n+2 X
  • D C nH 2n+1X
View Answer & Explanation
Question 38:
The alkanol obtained from the production of soap is
  • A Propanol
  • B Ethanol
  • C Glycerol
  • D Methanol
View Answer & Explanation
Question 39:
Ethyne is passed through a hot tube containing organo-nickel catalyst to produce
  • A Isoprene
  • B Polythene
  • C Ethanol
  • D Benzene
View Answer & Explanation
Question 40:
Due to the unstable nature of ethyne, it is stored by dissolving in
  • A Ethane-1,2-diol
  • B Propanol
  • C Ethanoic acid
  • D Propanone
View Answer & Explanation