CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
Question

In which of the following pairs of carbocations, the first carbocation is more stable than the second?

(i) CH2=CH+CH2 and CH2=CHCH2+CH2
(ii) CH3NH+CH2 and +CH2OH
(iii) CH3OCH2+CH2 and CH2O+CH2
(iv) CH3+CHCH2CH2CH3 and CH3CH2+CHCH2CH3

A
(i), (ii) and (iii)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
(i), (ii) and (iv)
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
(ii) and (iii)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
(iii) and (iv)
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B (i), (ii) and (iv)
(i). Allylic carbocation is more stable than a non-allylic carbocation

(ii). CH3NHCH+2 is more stable than CH+2OH because of negative inductive effect.

(iii). More αH more hyperconjugation. CH3CH+C3H7 have 5αH whereas C2H5CH+C2H5 have only 4αH

Hence, the correct option is B

flag
Suggest Corrections
thumbs-up
0
mid-banner-image
mid-banner-image
Join BYJU'S Learning Program
Select...
similar_icon
Related Videos
thumbnail
lock
Reaction Intermediate - Carbanion
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
Select...