Which of the following statements is correct?

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(C) $1$. The order of a reaction is an experimental quantity and can be zero,positive,negative,or fractional.$2$. Molecularity is a theoretical concep

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$A$ complex reaction does not have an overall molecularity and an overall order of reaction.

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(C) $1$. The order of a reaction is an experimental quantity and can be zero,positive,negative,or fractional.$2$. Molecularity is a theoretical concept defined only for elementary reactions.$3$. For a complex reaction,the overall molecularity is not defined because it consists of multiple elementary steps.$4$. Therefore,a complex reaction does not have an overall molecularity and an overall order of reaction.

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