The main Product of following reaction will be

Which of the following is most basic

The bad smelling substance formed by the action of alcoholic caustic potash on chloroform and aniline is

Reaction of aniline with benzaldehyde is

Methyl isocyanide on hydrolysis gives

The relative reactivities of acyl compounds towards nucleophbstitution are in the order of

A reaction of ethyl amine & acetic anhydride leads to the formation of :

A nitrogen containing organic compound gave an oily liquid on heating with bromine and potassium hydroxide solution. On shaking the product with acetic anhydride, an antipyretic drug was obtained. The reactions indicate that the starting compound is