Which of the following reactions produce carb | vedclass

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(B) $MnO_2$ is a mild oxidizing agent and does not oxidize ketones like $CH_3COCH_3$ to carboxylic acids.$(b)$ $Ph-CCl_3$ undergoes hydrolysis with aq

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$b, c, d$

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(B) $MnO_2$ is a mild oxidizing agent and does not oxidize ketones like $CH_3COCH_3$ to carboxylic acids.$(b)$ $Ph-CCl_3$ undergoes hydrolysis with aqueous $NaOH$ followed by acidification to form benzoic acid $(PhCOOH)$. This is a correct reaction.$(c)$ Alkyl halides react with $Mg$ to form Grignard reagents $(RMgX)$,which react with $CO_2$ followed by hydrolysis to yield carboxylic acids. This is a correct reaction.$(d)$ Vigorous oxidation of internal alkenes like $CH_3CH=CHCH_3$ with acidified $K_2Cr_2O_7$ cleaves the double bond to form two molecules of acetic acid $(CH_3COOH)$. This is a correct reaction.Therefore,reactions $(b)$,$(c)$,and $(d)$ produce carboxylic acids.

Column-$I$	Column-$II$
$(A)$ $CF_3COOH$	$(i)$ $3.41$
$(B)$ Benzoic acid	$(ii)$ $4.76$
$(C)$ $CH_3COOH$	$(iii)$ $0.23$
$(D)$ $4$-nitrobenzoic acid	$(iv)$ $4.20$

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Column-$I$ Column-$II$
$(A)$ $CF_3COOH$ $(i)$ $3.41$
$(B)$ Benzoic acid $(ii)$ $4.76$
$(C)$ $CH_3COOH$ $(iii)$ $0.23$
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The major product of the following reaction sequence is

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