Question

Arrangement of (CH3)3– C-, (CH3)-CH-, CH3– CH2-, when attached to benzyl or an unsaturated group, in increasing order of inductive effect is (2002)
1)(CH3)3-C – < (CH3)2 – CH – < CH3 – CH2
2)CH3-CH2 – < (CH3)2 – < CH – < (CH3)3-C –
3)(CH3)2 – CH < (CH3)3 – C -< CH3 – CH2
4)(CH3)3 – C -< CH3 – CH2 < (CH3)2 – < CH​

Answer 1

(2) -CH3 group has + I effect, as number of -CH3 group increases, the inductive effect increases.

Answer 2

(CH3)3C−<(CH3)2CH−<CH3CH2−

CH3CH2−<(CH3)2CH−<(CH3)3C−

(CH3)2CH−<(CH3)3C−<CH3CH2−

(CH3)3C−<CH3CH2−<(CH3)2CH−

Answer :

1