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  4. Aldehydes or ketones when treated with C6H5 - NH - NH2, the product formed is

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Q. Aldehydes or ketones when treated with $C_6H_5 - NH - NH_2$, the product formed is

MHT CETMHT CET 2017Aldehydes Ketones and Carboxylic Acids

Solution:

Aldehydes or ketones when treated with phenyl hydrazine, $C _{6} H _{5}- NH - NH _{2}$, the product is phenylhydrazone.
For example, acetaldehyde gives the following reaction.
$C _{6} H _{5}- NH - NH _{2}+ CH _{3} CHO \rightarrow C _{6} H _{5}- NH - N = CH - CH _{3}$