Which one of the following compounds forms a quaternary salt on reacting with excess methyl iodide?

• C₂H₅OCH₃

• (CH₃)₂CHOC₂H₅

• C₆H₅NH₂

• C₆H₅NO₂

Nitrobenzene on reduction with zinc and NH₄Cl gives

• azobenzene

• aniline

• hydrazobenzene

• N-phenyl hydroxylamine

In Gattermann reaction, a diazonium group is replaced by $\underline{\mathrm{X}}$ using $\underline{\mathrm{Y}}$. $\underline{\mathrm{X}}$ and $\underline{\mathrm{Y}}$ are-

• $\underline{\mathrm{X}}$ - ${\mathrm{Cl}}^{⊝}$; $\underline{\mathrm{Y}}$ - Cu/ HCl 

• $\underline{\mathrm{X}}$ - ${\mathrm{Cl}}^{\oplus }$ ; $\underline{\mathrm{Y}}$ - CuCl₂/ HCl

• $\underline{\mathrm{X}}$ - ${\mathrm{Cl}}^{⊝}$; $\underline{\mathrm{Y}}$ - CuCl₂/ HCl

• $\underline{\mathrm{X}}$ - Cl₂ ; $\underline{\mathrm{Y}}$ - Cu₂O/ HCl

What is the product obtained in the reaction of acetaldehyde with semicarbazide ?

• ${\mathrm{H}}_3\mathrm{C}-\mathrm{CH}=\mathrm{N}-{\mathrm{NHCONH}}_2$

• ${\mathrm{H}}_3\mathrm{C}-\mathrm{CH}=\mathrm{N}-{\mathrm{NH}}_2$

• ${\mathrm{H}}_3\mathrm{C}-\mathrm{CH}=\mathrm{N}-\mathrm{OH}$

• ${\mathrm{H}}_3\mathrm{C}-{\mathrm{CCH}}_3=\mathrm{N}-\mathrm{NH}-\mathrm{CO}-{\mathrm{NH}}_2$

Yellow dye can be prepared by a coupling reaction of benzene diazonium chloride in acidic medium with X. Identify X from the following.

• Aniline

• Phenol

• Cumene

• Benzene

Acid hydrolysis of methyl isocyanide gives

• CH₃NH₂ + HCOOH

• CH₃NH₂ + CH₃COOH

• CH₃NH₂ + CH₃CH₂COOH

• CH₃NH₂ + (CH₃)₂CHCOOH

127.

Mark the correct statement.

• Methyl amine is acidic.

• Methyl amine is less basic than NH₃.

• Methyl amine is a stronger base than NH₃.

• Methyl amine forms salts with bases.

Hydrolysis of acetamide gives

• acetic acid

• acetaldehyde

• methyl amine

• formic acid

Which one of the following will react with acetamide to give methyl amine?

• PCl₅

• NaOH + Br₂

• Soda lime

• H₂SO₄

Reduction of methyl isocyanide gives

• ethylamine

• methylamine

• dimethylamine

• trimethylamine