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B
(i) and (ii)
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C
(ii) and (iii)
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D
(i) and (iv)
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Solution
The correct option is C (ii) and (iii) In Cannizzaro reaction aldehydes which do not have α-hydrogen atom undergo self-oxidation and reduction (disproportion) reaction on heating with concentrated alkali.
Compound (i) and (iv) have α−H, so they won't undergo Cannizzaro reaction. Hence, option C is the correct answer.