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Question: The order of a reaction is said to be 2 with respect to a reactant X, when....

The order of a reaction is said to be 2 with respect to a reactant X, when.

A

The rate of the reaction is proportional to [X]

B

The rate of the reaction is proportional [X]2\lbrack X\rbrack^{2}

C

Two molecules of X are present in the stoichiometric

equation

D

The reaction occurs in two steps

Answer

The rate of the reaction is proportional [X]2\lbrack X\rbrack^{2}

Explanation

Solution

r∝[X]2r \propto \lbrack X\rbrack^{2} or r=k[X]2r = k\lbrack X\rbrack^{2}