CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A carbocation is a group of atoms with a positively charged carbon atom having six electrons in the valence shell after sharing. Carbocations are formed in the heterolysis of a bond and are planar species. Stability of carbocation is determined by inductive effect, hyperconjugation and resonance effect. Greater the number of contributing structures more is the stability of a Carbocation. Electron releasing groups (+I effect) increases the stability of a carbocation whereas the electron withdrawing groups (I effect) have an opposite effect.

Which of the following is most stable carbocation?

A
+CH3
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
CH3+CHCH3
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
CH3+CH2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
CH3+C|CH3CH3
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D CH3+C|CH3CH3
The stability order of carbocations is Me3C+>Me2C+H>MeC+H2>Me+.

This is due to hyperconjugation or no bond resonance of adjacent hydrogens with the positive charge. Tertiary carbocation has 3 methyl groups with 9 hyperconjugative hydrogens which makes it most stable.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Mesomeric Effect
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon