Which of the following is the most stable diazonium salt? from C

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 Multiple Choice QuestionsMultiple Choice Questions

71.

Which of the following amines gives yellow oily liquid with HNO3

  • Ethyl methyl amine

  • Aniline

  • 3-methyl benzyl amine

  • Methyl amine


72.

N-ethyl-N-methylpropan-1-amine is

  • 1° amine

  • 2° amine

  • 3° amine

  • 4° amine


73.

How many metamers are possible for molecular formula C4H11N ?

  • 2

  • 3

  • 4

  • 5


74.

Benzaldehyde reacts with ammonia to form

  • benzaldehyde ammonia

  • urotropine

  • hydrobenzamide

  • ammonium chloride


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75.

Which of the following gives condensation with hydroxyl amine but does not undergo self condensation?

  • Methanal

  • Propanal

  • Acetone

  • Ethanal


76.

Which of the following is the strongest base?


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77.

Which of the following is the most stable diazonium salt?

  • C6H5CH2N2+X-

  • CH3N2+X-

  • CH3CH2N2+X-

  • C6H5N2+X-


D.

C6H5N2+X-

C6H5CH2N2+X-, CH3N2+ and CH3CH2N2+X- are primary amine diazonium salts which are readily decomposed and liberate N2 gas but C6H5N2+X is an aryl diazonium salt which is stabilised by resonance of benzene ring which is directly attached with nitrogen.


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78.

The correct IUPAC name of [Co(NH3)3(NO2)3] is

  • Triammine trinitro-N cobalt (III)

  • Triammine trinitro-N cobalt (II)

  • Triammine cobalt (III) nitrite

  • Triammine trinitro-N cobaltate (III)


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79.

The replacement of diazonium group by fluorine is known as

  • Gattermann reaction

  • Sandmeyer reaction

  • Balz-Schiemann reaction

  • Etard reaction


80.

Identify the alkene that is produced in the following series of reactions

  


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