NEET UG CHEMISTRY MCQ: AMINES

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Diazo-coupling is useful to prepare:

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Correct option: B

Dyes

Option B (Dyes) is correct because diazo-coupling reactions are commonly used in the synthesis of azo dyes, which are widely used as coloring agents.

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Which statement is not correct regarding aniline? The gas evolved when methyl amine reacts with nitrous acid is Diethylamine on oxidation with

\mathrm{KMn}{\mathrm{O}_4}

gives: An organic amino compound reacts with aqueous nitrous acid at low temperature to produce an oily nitroso amine. The compound is Aniline was diazotised and subsequently reduced with stannous chloride and hydrochloric acid to yield: The reaction is

Ar\,\mathop {{N_2}}\limits^ + \,C{l^ - }\xrightarrow{{Cu/HCl}}\,ArCl + {N_2} + \,CuCl\,\,