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Question

The structures of compounds J, K and L, respectively, are
32373_9100f5921184457b9d56ab6e2c8736bd.png

A
PhCOCH3, PhCH2COCH3 and PhCH2COOK+
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B
PhCHO,PhCH2CHO and PhCOOK+
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C
PhCOCH3, PhCH2CHO and CH3COOK+
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D
PhCHO,PhCOCH3 and PhCOOK+
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Solution

The correct option is D PhCHO,PhCOCH3 and PhCOOK+
from given information
Refer image I.
(1) reaction of (I) with KOH suggest that it is cannizzaro reaction therefore (L) must be PhCOOK and (J) is (PhCHO)
(ii) structure of (M) is given and it is αβ unsaturated ketone, If suggest that (M) is obtained by adole Rxn of (x) So proceed reverse to get structure of (K)
Refer image ,(II)
(iii) again proceed reverse to get structure of (1) and (4),

447890_32373_ans_a4f517b2fc5848229dcb6fee9b75fe61.png

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