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Give chemical tests to distinguish betwe...

Give chemical tests to distinguish between the following pairs of compounds :
(a) Aniline and Ethylamine (b) Ethylamine and Dimethylamine

Text Solution

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Azo dye Test : Dissolve the given amine in dil. HCl and cool it ice-cold water. Now add ice cold solution of `NaNO_(2)` and HCl followed by an ice-cold `beta` -naphthol solution. The appearance of brilliant orange-red indicates that the given amine is aniline.
Ethylamine does not form any dye and therefore does not show any coluur any when treated sililarly. (or any other suitable test)
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