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  4. An organic compound A on reduction gives compound B, which on reaction with trichloro methane and caustic potash forms C. The compound 'C' on catalytic reduction gives N-methyl benzenamine, the compound A is,

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Q. An organic compound $A$ on reduction gives compound $B$, which on reaction with trichloro methane and caustic potash forms $C$. The compound $'C'$ on catalytic reduction gives $N$-methyl benzenamine, the compound A is,

KCETKCET 2016Amines

Solution:

Compound (A) is nitrobenzene.

image which on reduction gives aniline.

image which on treatment with $CHCl _{3}$ and KOH show carbylaminẹ reaction and gives isocyanide.

image

Thus ,

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