The compounds (A), (B), and (C), respectively, are:

I, II, and III

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I, III, and II

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III, II, and I

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III, I, and II

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Solution

The correct option is C III, I, and II
As we know,
phenol is more acidic than alcohols due to the resonance of conjugate base so products are as shown in the figure.
The reactant on reaction with diborane followed by acetic acid firns phenol whereas when the reactant reacts with diborane followed by peroxide forms alcohol as a product.

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