Dichlorocarbene is formed by chloroform and a | vedclass

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(D) The reaction of chloroform $(CHCl_3)$ with alcoholic $KOH$ generates dichlorocarbene $(:CCl_2)$ as an intermediate.In the Reimer-Tiemann reaction,

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$(B)$ and $(C)$ both

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(D) The reaction of chloroform $(CHCl_3)$ with alcoholic $KOH$ generates dichlorocarbene $(:CCl_2)$ as an intermediate.In the Reimer-Tiemann reaction,phenol reacts with $CHCl_3$ and $KOH$ to form salicylaldehyde,where $:CCl_2$ is the electrophilic intermediate.In the Carbylamine reaction,primary amines react with $CHCl_3$ and $KOH$ to form isocyanides,where $:CCl_2$ is also the electrophilic intermediate.Therefore,both reactions involve the formation of dichlorocarbene.

Column-$I$ (Reaction)	Column-$II$ (Product and Reaction Name)
$A$. Phenol $+$ dilute $HNO_3$	$i$. Mononitrophenol,Nitration
$B$. Phenol $+$ Bromine water	$ii$. $2,4,6$-Tribromophenol,Bromination
$C$. Phenol $+$ $Na_2Cr_2O_7/H_2SO_4$	$iii$. Benzoquinone,Oxidation
$D$. Sodium phenoxide $+$ $CO_2$ followed by $H^+$	$iv$. Salicylic acid,Kolbe reaction

Dichlorocarbene is formed by chloroform and alcoholic $KOH$. Which reaction involves this carbene?

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