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Chemistry
Which among the following is most stable carbocation
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Q. Which among the following is most stable carbocation
NTA Abhyas
NTA Abhyas 2020
Organic Chemistry – Some Basic Principles and Techniques
A
iso-propyl
20%
B
Triphenylmethyl cation
30%
C
Ethyl cation
30%
D
t-Butyl cation
20%
Solution:
Stability of carbonium ions.
tertiary alkyl > secondary alkyl > primary alkyl > methyl.
More the number of alkyl groups, the greater the dispersal of positive charge and therefore, more the stability of carbonium ion is observed.
Dispersal of positive charge increases with the increase in the number of benzene ring.