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Question 16 In which of the following compound a more stable carbocation will be formed after heterolysis?

Question 16 In which of the following compound a more stable carbocation will be formed after heterolysis?

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Grade:12

1 Answers

sreehari
42 Points
6 years ago
The Carbocation formed will be
a)(CH3)3C+
b)(C6H5)3C+
c)(C6H5)2C+H
d)(C6H5)C+H2
Stability of the carbocation will be of the order b > c > a > d .
In b and c the cation is stable due to delocalization of the positive charge on the phenyl rings.
In a the stabilization is due to +I effect as well as hyperconjugation of 9 Alpha Hydrogens.
The stabilization in a is less than b and c but is more than d as d only has one phenyl ring for delocalization while a is much more stable due to 9 hyperconjugated H and a +I effect.

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