Search SchoolNGR

Saturday, 13 June 2026
Register . Login

Chemistry Past Questions and Answers

Chemistry Questions

Question 2941:
Alkenes undergo the following reactions except
  • A Addition
  • B Hydration
  • C Polymerization
  • D Substitution
View Answer & Explanation
Question 2942:
Hydrocarbons which react with ammoniacal copper (l) chloride solution conform to the general molecular formula
  • A C<sub style='font-size: smaller;'>n</sub>H<sub style='font-size: smaller;'>2n</sub>
  • B C<sub style='font-size: smaller;'>n</sub>H<sub style='font-size: smaller;'>2n</sub>
  • C C<sub style='font-size: smaller;'>n</sub>H<sub style='font-size: smaller;'>2n+2</sub>
  • D C<sub style='font-size: smaller;'>n</sub>H<sub style='font-size: smaller;'>2n-2</sub>
View Answer & Explanation
Question 2943:
Consider the reaction below: Vegetable oil \(\frac{H<sub style='font-size: smaller;'>2</sub>;NI catalyst}{High temperature}\) product. The reaction is applied in the manufacture of
  • A Drugs
  • B Margarine
  • C Paraffin wax
  • D Soapy detergents
View Answer & Explanation
Question 2944:
Which of the following compounds reacts readily with sodium to liberate hydrogen?
  • A CH<sub style='font-size: smaller;'>3</sub>CH<sub style='font-size: smaller;'>2</sub>CH<sub style='font-size: smaller;'>3</sub>
  • B CH<sub style='font-size: smaller;'>3</sub>COOH
  • C CH<sub style='font-size: smaller;'>3</sub> CH<sub style='font-size: smaller;'>2</sub>CHO
  • D CH<sub style='font-size: smaller;'>3</sub> CH(OH)CH<sub style='font-size: smaller;'>3</sub>
View Answer & Explanation
Question 2945:
Glucose reduces Fehling's solution on warming to
  • A Copper (l) oxide
  • B Copper (ll) oxide
  • C Copper (l) chloride
  • D Copper (ll) hydroxide
View Answer & Explanation