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Q.
$N$-methylaniline on reaction with nitrous acid gives
Uttarkhand PMTUttarkhand PMT 2011
Solution:
$N$-methylamline on reaction with nitrous acid gives $N$-nitroso-$N$-methylaniline.
$C_{6} H_{5}-N H-C H_{3}+H O N O \rightarrow \underset{\text{N- nitroso - N - methyl aniline}}{C_{6} H_{5}-\underset{\overset{|}{N O}}{N}-C H_{3}+H_{2} O}$