In a reaction involving hydrolysis of an orga | vedclass

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(B) The reaction is $RCl + H_2O 	o ROH + HCl$. Since water is present in a large excess,its concentration remains effectively constant throughout the

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Molecularity is $2$,order of reaction is $1$

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(B) The reaction is $RCl + H_2O 	o ROH + HCl$. Since water is present in a large excess,its concentration remains effectively constant throughout the reaction. Therefore,the rate of the reaction depends only on the concentration of $RCl$,making it a pseudo-first-order reaction,so the order is $1$. Molecularity is defined as the number of reacting species (atoms,ions,or molecules) taking part in an elementary step. Here,both $RCl$ and $H_2O$ are involved in the collision,so the molecularity is $2$.

In a reaction involving hydrolysis of an organic chloride in the presence of a large excess of water,$RCl + H_2O \to ROH + HCl$.

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