Home Chemistry Hydrogen and Its Compounds ( Not in Syllabus ) NCERT The reaction of dihydrogen with dioxygen to …
Chemistry Hydrogen and Its Compounds ( Not in Syllabus ) NCERT Single Correct MCQ
Published on: August 14, 2026

The reaction of dihydrogen with dioxygen to form water

A
is slightly endothermic.
B
is highly endothermic.
C
is highly exothermic.
D
None of these.

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Verified by Experts
The correct answer is:
C

A tremendous amount of energy is released when dihydrogen reacts with dioxygen. The following chemical reaction takes place:

This is an example of combustion reaction which involves release of a large amount of heat. It is thus an exorthermic reaction.

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