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The increasing order of reactivity of th...

The increasing order of reactivity of the following halides for the `S_(N)1` reaction is
I.`CH_(3)CH(CI)CH_(2)CH_(3)`
`II . CH_(3)CH_(2)CH_(2)Cl`
III. `p. -H_(3)CO-C_(6)H_(4)-CH_(2)Cl`

A

`(III) lt (II) lt (I)`

B

`(II) lt (I) lt (III)`

C

`(I) lt (III) lt (II)`

D

`(II) lt (III) lt (I)`

Text Solution

Verified by Experts

The correct Answer is:
B
In `S_(N)1` reactions, the stability of carbocation formed determines the reactivity. Greater the stability of the carbocation, greater is the reactivity.

The order of stability of carbocation is: `II lt I lt III`
Therefore, the order of reactivity is `II lt I lt III`
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The increasing order of the reactivity of the following halides for the S_(N) 1 reaction is underset((I))underset(Cl)underset(|)(CH_(3))CHCH_(2)CH_(3) " " underset((II))(CH_(3)CH_(2)CH_(2)Cl) " " underset((III))(p-H_(3)CO-C_(6)H_(4)-CH_(2)Cl

The increasing order of reactivity of the following halides for the S_(N^(1)) reaction is : CH_(3)-underset(CI)underset(|)(CH)-CH_(2)CH_(3) " " underset((II))(CH_(3)CH_(2)CH_(2)CI) underset((III))(p-H_(3)CO-C_(6)H_(4)-CH_(2)CI)

Increasing order of the following alkyl halides for S_(N)1 reaction is CH_(3)Cl(I),CH_(3)underset(Cl)underset(|)CHCH_(3)(II),(CH_(3))_(3)C Cl(III)

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