InterviewSolution
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InterviewSolution
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(a) How will you distinguish between the following pairs of compunds: (i) Aniline are Ethanamine (ii) Aniline and N-methylaniline (b) Arrange the following compounds in decreasing order of their boiling points: Butanol, Butanamine, Butane |
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Answer» SOLUTION :(a) (i) Aniline and Ethanamine Ethanamine on treatment with `NaNO_(2)//HCl` evolves `N_(2)` gas and ethanol is formed. Aniline does not give this test, no `N_(2)` is evolved. However aniline reacts with `NaNO_(2)//HCl` at `0-5^(@)C` to form benzene diazonium chloride. (II) Aniline and N-methylaniline Aniline and N-methylaniline can be DISTINGUISHED by performing carbylamine test. Aniline on heating with chloroform and potassium hydroxide evolved carbylamine which has a foul SMELL. N-methylaniline does not give this test. (b) Decreasing order of boiling points: Butanol > BUTANAMINE > Butane |
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