1.

In the reaction the electrophile involved isA. dichloromethyl cation `(underset(+)(C)HCl_(2))`B. formyl cation `(underset(+)(C)HO)`C. dichloromethyl anion `(underset(-)(C)HCl_(2))`D. dichorocarbene `( : C Cl_(2))`

Answer» Correct Answer - D
It is an example of Reimer Tiemann reaction. The electrophile involved in the reaction is dichlorocarbene `( : C Cl_(2))` and is formed as follows :
`{:(CHCl_(3),+,OH^(-),hArr,overset(..)(C)Cl_(3)+H_(2)O),(,,,,darr-Cl^(-)),(,,,,:C Cl_(2)),(,,,,"Dichlorocarbene (electrophile)"):}`


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