Which of the following amines, can give N-nitrosoamine on treatment with HNO₂?

Assertion: Anilinium chloride is more acidic than ammonium chloride.

Reason : Anilinium chloride is resonance stabilised.

• If both assertion and reason are true and reason is the correct explanation of assertion.

• If both assertion and reason are true but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both assertion and reason are false.

Which of the following statement is true?

• Trimethyl amines form a soluble compound with Hinsberg reagent and KOH.

• Dimethylamines react with KOH and phenol to form an azo dye.

• Methylamine reacts with nitrous acid and liberates N₂ from aq. soln.

• None of these

Aniline with CHCl₃ and KOH on heating gives :

• isocyanide

• cyanide

• phenol

• salicylic acid

Correct order of basic nature is :

• NH₃ > CH₃NH₂ > C₆H₅NH₂

• C₆H₅NH₂ > NH₃ > CH₃NH₂

• CH₃NH₂ > NH₃ > C₆H₅NH₂

• none of the above

When acetamide reacts with Br₂ and caustic soda , then we get :

• acetic acid

• bromoacetic acid

• methyl amine

• ethyl amine

The following sequence of reactions on A gives

Nitrobenzene on treatment with zinc dust and aqueous ammonium chloride gives

• C₆H₅N =N-C₆H₅

• C₆H₅NH₂

• C₆H₅NO

• C6H₅NHOH.

99.

Among the following which one does not act as an intermediate in Hofmann rearrangement?

• RNCO

• RCO$\stackrel{..}{\mathrm{N}}$

• RCO$\stackrel{..}{\mathrm{N}}$HBr

• RNC

Pyridine is less basic than triethylamine because

• pyridine has aromatic character

• nitrogen in pyridine is sp² hybridised

• pyridine is a cyclic system

• in pyridine, lone pair of nitrogen is delocalised