Which of the following statements are NOT correct? A. hydro…

Chemistry Hydrocarbons Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 21, 2026

Which of the following statements are NOT correct?

A. hydrogen is used to reduce heavy metal oxides to metal.

B. heavy water is used to study reaction mechanism.

C. hydrogen is used to make saturated fats from oils

D. The H - H bond dissociation enthalpy is lowest as compared to a single bond between two atoms of any element.

E. Hydrogen reduces oxides of metals that are more active than iron.

Choose the most appropriate answer from the options given below:

D, E only

A, B, C only

B, C, D only

B and D only

Text Solution

Verified by Experts

The correct answer is:

D: Due to small size, s-s overlap H 2 has high dissociation enthalpy.

E: Standard Electrode Potential of hydrogen is more than metals below Fe.

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