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प्रश्न
Give one chemical test to distinguish between the following pair of compounds.
Aniline and N-methylaniline
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उत्तर
Aniline and N-methylaniline can be distinguished using the Carbylamine test. Primary amines, on heating with chloroform and ethanolic potassium hydroxide, form foul-smelling isocyanides or carbylamines. Aniline, being an aromatic primary amine, gives a positive carbylamine test. However, N-methylaniline, being a secondary amine, does not.
\[\ce{\underset{(Primary amine)}{\underset{Aniline}{C6H5NH2}} + CHCl3 + 3KOH ->[\Delta] \underset{(foul smell)}{\underset{Benzyl isocyanide}{C6H5NC}} + 3KCl + 3H2O}\]
\[\ce{\underset{(Secondary amine)}{\underset{N-methylaniline}{C6H5NHCH3}} + CHCl3 + 3KOH ->[\Delta] No reaction}\]
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संबंधित प्रश्न
Convert 3-Methylaniline into 3-nitrotoluene.
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Write the IUPAC name of the following compound and classify it as primary, secondary and tertiary amine.
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Give one chemical test to distinguish between the following pair of compounds.
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Accomplish the following conversion:
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\[\ce{C6H5N2Cl ->[(i) HBF4][(ii) NaNO2/Cu, \Delta]}\]
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\[\begin{array}{cc}
\ce{CH3CN to CH3 - C - CH3}\\
\phantom{...........}||\\
\phantom{...........}\ce{O}
\end{array}\]
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\[\ce{\underset{(Acetyl chloride)}{CH3COCl}->[H2][Pd-BaSO4]A + HCl}\]
