Which of the following alkyl halides undergoes hydrolysis with aqueous `KOH` at the fastest rate ?A. `CH_(3)overset(Cl)overset(|)(CH)CH_(3)`B. `(CH_(3))_(2)CHCH_(2)Cl`C. `CH_(3)CH_(2)CH_(2)Cl`D. `CH_(3)CH_(2)Br`

Which of the following alkyl halides undergoes hydrolysis with aqueous

1.	Which of the following alkyl halides undergoes hydrolysis with aqueous `KOH` at the fastest rate ?A. `CH_(3)overset(Cl)overset(\|)(CH)CH_(3)`B. `(CH_(3))_(2)CHCH_(2)Cl`C. `CH_(3)CH_(2)CH_(2)Cl`D. `CH_(3)CH_(2)Br`
Answer» Correct Answer - D All are primary halides undergoing `S_(N)1` mechanism . During hydrolysis (a nucleophilic displacement) , the `C-X` bond is broken in the rate controlling step. Thus the order of reactivity (which depends upon the strength of `C-X` bond) is `R-I gt R - Br gt R - Cl gt R - F`

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Which of the following alkyl halides undergoes hydrolysis with aqueous `KOH` at the fastest rate ?A. `CH_(3)overset(Cl)overset(|)(CH)CH_(3)`B. `(CH_(3))_(2)CHCH_(2)Cl`C. `CH_(3)CH_(2)CH_(2)Cl`D. `CH_(3)CH_(2)Br`

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