Aniline and aliphatic amine can be distinguished by azo dye test.
A
True
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B
False
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Solution
The correct option is A True Aniline is coupled with benzene diazonium chloride to from p-aminoiazobenzene (orange red dye). This reaction is not given by aliphatic amines. C6H5−NH2+C6H5−N=N−Cl pH 4-5−−−−→C6H5−N=N−C6H4−NH2