Consider the following above compounds. Hyperconjugation occurs in:
A
III only
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B
I and III
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C
I only
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D
II only
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Solution
The correct option is C III only
Hyperconjugation requires a presence of H atom on C alpha to double bond or a radical. Hyperconjugation occurs in compound III (radical derived from 2-methylbicyclo[2.2.1]heptane) only.