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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)

Respuesta :

Answer: 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 [tex]2H_{2}O(l)\rightarrow 2H_{2}(g) + O_{2}(g)[/tex], is a decomposition reaction.

As here, the [tex]H_{2}O[/tex] molecule is breaking into hydrogen and oxygen. Hence, two products are obtained.

Thus, option (d) is the decomposition reaction.

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