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Give a chemical test to distinguish betw...

Give a chemical test to distinguish between aniline and ethyl amine.

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Ethylamine `(CH_(3)CH_(2)NH_(2))` is a primary aliphatic amine while aniline `(C_(6)H_(5)NH_(2))` is a primary aromatic amine. "With the reaction of nitrous acid `(HNO_(2))`
Ethylamine gives a brisk effervescence of `N_2` gas with the formation of alcohol.
`underset("Ethylamine")(CH_(3)CH_(2)NH_(2) + HONO) overset(NaNO_(2))underset("Dil" HCl(273-278 K)) to underset("Ethanol")(CH_(3)CH_(2)OH) + N_(2) uarr + H_(2)O`
Whereas aniline gives benzene diazonium chloride which on treatment with alkaline solution of {`beta`-naphthoI (2-naphthol) gives an orange dye (azo dye test).
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