The following reaction occurs.

Acylium ion is resonance stabilised.

Options

A. If both `(A)` are `( R)` are true and `( R)` is the correct explanation of `(A)`.
B. If both `(A)` and `( R)` are true but `( R)` is not the correct explanation of `(A)`.
C. If `(A)` is true but `( R)` is false.
D. If `(A)` is false but `( R)` is true.

Answer

A

Explanation

Although acid `(I)` is sterically hindered, acylium ion `(A)` is formed as the intermediate which minimises strain. This ion is resonance stabilised due to delocalisation of `pi overline e^, s`.
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