Which of the following statements is most applicable to hyd…

Chemistry Hydrogen and Its Compounds ( Not in Syllabus ) Hydrogen Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 14, 2026

Which of the following statements is most applicable to hydrogen ?

It can act as a reducing agent only

It can act as an oxidising agent only

It can act as both as oxidising and reducing agents

It can act neither as an oxidising nor as a reducing agent

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The correct answer is:

Hydrogen can act both as oxidising and reducing agent. It acts as oxidising agent when reacts with metal and form metal hydrides which are electrovalent compounds.

2Na + H 2 ⎯→ 2Na + H Θ

Ca + H 2 ⎯→ CaH 2

Hydrogen also acts as reducing agent when its reacts with oxides

PbO + H 2 ⎯→ Pb + H 2 O

CuO + H 2 ⎯→ Cu + H 2 O

Fe 3 O 4 + H 2 ⎯→ 3Fe + 4H 2 O

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