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Chemistry Past Questions and Answers

Jamb Chemistry Questions

Question 46:
CH3COOH(g) → H4(g) + CO2(g)
The reaction above is
  • A Carboxylation
  • B Decarboxylation
  • C Acidification
  • D Esterification
View Answer & Explanation
Question 47:
C2H5OH(aq) → Y
If the above reaction takes place in conc. H2SO4 at 180o, Y represents
  • A CH4
  • B C2H5COOH
  • C C2H4
  • D CH3OCH3
View Answer & Explanation
Question 48:
Alkanol + Alkanoic ↔ Ester + Water
The reverse reaction above is known as
  • A Hydrolysis
  • B Saponification
  • C Hydration
  • D Fermentation
View Answer & Explanation
Question 49:
In the production of soap, concentrated sodium chloride solution is added to
  • A Increase the solubility of soap
  • B Decrease the solubility of the soap
  • C Saponify the soap
  • D Emulsify the soap
View Answer & Explanation
Question 50:
In the experiment above, X is a mixture of nitrogen, carbon (IV) oxide and
  • A Water
  • B Impurities
  • C Inert gas
  • D Oxygen
View Answer & Explanation