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Billymkhoi

(1) decomposition is the correct answer.

Answer: The correct answer is option (1).

Explanation:

Decomposition: It is a chemical reaction in which one large molecules breaks down into small molecules.

\(AB\rightarrow A+B\)

Sublimation: It a physical process in which solid state changes directly into gaseous state with escaping liquid state.

Distillation: : It is separation technique which used to separate the liquids on the basis of their boiling points.

Vaporization: It is physical process in which liquid state changes to gaseous state.

Hence, from the above we can conclude that decomposition is a type of a chemical reaction.

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