Which one of the following is a decomposition reaction? a) 2h 2 (g) + o 2 (g) -> 2h 2o b) (g) n 2 (g) + 3h 2 (g) -> 2nh 3 c) (g) ch 4 (g) + 2o 2 (g) -> co 2 (g) + 2h 2o d) (g) 2h 2o (l) -> 2h 2 (g) + o 2 (g)

Option (d) is the correct answer.

Explanation:

When a reactant breaks into two or more number of products then the reaction is known as decomposition reaction.

Out of the given options, option (d) that is , is a decomposition reaction.

As here, the molecule is breaking into hydrogen and oxygen. Hence, two products are obtained.

Thus, option (d) is the decomposition reaction.

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