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Q.
Which of the following carbocations is most stable?
AMUAMU 2018Organic Chemistry – Some Basic Principles and Techniques
Solution:
is the most stable carbocation
The stability of carbocations increases as we go from primary to secondary to tertiary carbons. It is because tertiary carbocations have more inductively donating groups as compared to secondary and primary carbocation. Secondly, in case of tertiary carbocation there are more hyper conjugative structures as compared to secondary and primary carbocation
Hence, the order of stability of carbocations is
$3^{\circ}>\,2^{\circ}>\,1^{\circ}$
is the most stable carbocation