Mark the correct statement. from Chemistry Amines

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 Multiple Choice QuestionsMultiple Choice Questions

121.

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

  • C2H5OCH3

  • (CH3)2CHOC2H5

  • C6H5NH2

  • C6H5NO2


122.

Nitrobenzene on reduction with zinc and NH4Cl gives

  • azobenzene

  • aniline

  • hydrazobenzene

  • N-phenyl hydroxylamine


123.

In Gattermann reaction, a diazonium group is replaced by X using Y. X and Y are-

  • X - ClY - Cu/ HCl 

  • X - Cl ; Y - CuCl2/ HCl

  • X - ClY - CuCl2/ HCl

  • X - Cl2Y - Cu2O/ HCl


124.

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

  • H3C-CH=N-NHCONH2

  • H3C-CH=N-NH2

  • H3C-CH=N-OH

  • H3C-CCH3=N-NH-CO-NH2


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125.

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


126.

Acid hydrolysis of methyl isocyanide gives

  • CH3NH2 + HCOOH

  • CH3NH2 + CH3COOH

  • CH3NH2 + CH3CH2COOH

  • CH3NH2 + (CH3)2CHCOOH


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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.


C.

Methyl amine is a stronger base than NH3.

Among the given statements, statement c is the correct one.

Methyl group shows +I effect which increases electron density on nitrogen atom and facilitate donation of lone pair of electrons. So, methyl amine is stronger base than ammonia.


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128.

Hydrolysis of acetamide gives

  • acetic acid

  • acetaldehyde

  • methyl amine

  • formic acid


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129.

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

  • PCl5

  • NaOH + Br2

  • Soda lime

  • H2SO4


130.

Reduction of methyl isocyanide gives

  • ethylamine

  • methylamine

  • dimethylamine

  • trimethylamine


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