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Reactivity order for SN1 (i) CH(3)-und...

Reactivity order for SN1
`(i) CH_(3)-underset(Cl)underset(|)(CH)-CH_(2)-CH_(3)`
(ii) `Ph-CH_(2)-underset(Cl)underset(|)(CH)-CH_(3)`
(iii) `CH_(3)-overset(Cl)overset(|)underset(OCH_(3))underset(|)C-CH_(3)`
(iv) `CH_(3)CH_(2)-CH_(2)-Cl`

A

`I gt II gt III`

B

`II gt I gt III`

C

`III gt II gt I`

D

`I gt III gt II`

Text Solution

Verified by Experts

The correct Answer is:
B
Reactivity towards `SN^(1) alpha` stability of carbocation.
(I) `H_(2)overset(oplus)C-CH_(2)-CH_(2)-CH_(3)`
(II) `H_(3)C-overset(oplus)CH-CH_(2)-CH_(3)`
(III) `H-overset(O)overset(||)C-overset(oplus)CH-CH_(2)-CH_(3)`
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