Question

SN1 reaction underoges through a carbocation intermediate as follows : -

[R = t-Bu, iso-Pr, Et, Me] (X = Cl, Br, I)

The correct statements are

I. The decreasing order of rate of SN1 reaction is t-BuX>iso-PrX>EtX>MeX

II. The decreasing order of ionisation energy is MeX>EtX>iso-PrX> t-BuX

III. The decreasing order of energy of activation is t-BuX>iso-PrX>EtX>MeX

• A. I & II are correct
• B. I & III are correct
• C. II and III are correct
• D. I, II & III are correct

Answer 1

Answer: (D)

I, II & III are correct

Answer 2

In 4th negative charge is not taking part in conjugation