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 Multiple Choice QuestionsMultiple Choice Questions

611.

Which is the strongest base among the following?

  • H3CNH2


612.

Cyclohexylamine and aniline can be distinguished by

  • Hinsberg test

  • Carbylamine test

  • Lassaigne test

  • Azo dye test


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613.

Nitration of phenyl benzoate yields the product


C.

It is an electrophilic aromatic substitution reaction. Because the COO- acts as an electron wthdrawing group to one phenyl group and a moderate electron donating group to the other phenyl group the nitration wll occur on the phenyl group where COO- is acting as an
electron donating group.

The major product of the nitration will have the -NO2 in the para position because the ortho positions partially blocked by the large COPh group.


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614.

Coupling of benzene diazonium chloride with 1-naphthol in alkaline medium will give:


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615.

Which of the following amines can be prepared by Gabriel phthalimide reaction ?

  • n-butylamine

  • neo-pentylamine

  • t-butylamine

  • triethylamine


616.

The major product obtained in the following reaction is:


617.

The peptide that gives positive ceric ammonium nitrate and carbylamines tests is:

  • Asp-Gln

  • Ser-Lys

  • Gln-Asp

  • Lys-Asp


618.

The major products A and B for the following reactions are, respectively:


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619.

The major product in the following reaction is:


620.

The major producer of the following reaction is

CH3CHOHCH2CH2NH2 triethylamineethyl formate(1 equiv.)

  • CH3CH=CH-CH2NH2

  • CH3-CHOH-CH=CH2

  • CH3-CHOHCH2CH2NHCHO


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