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 Multiple Choice QuestionsMultiple Choice Questions

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41.

Which one of the following will be most basic?

  • Aniline

  • p-methoxyaniline

  • p-methyl aniline

  • Benzylamine


42.

Nitrobenzene can be converted into azobenzene by reduction with

  • Zn, NH4Cl, 

  • Zn/NaOH, CH3OH

  • Zn/NaOH

  • LiAlH4, ether


43.

The one which is least basic is

  • NH3

  • C6H5NH2

  • (C6H5)3N

  • (C6H5)2NH


44.

Which of the following converts CH3CONH2 to CH3NH2?

  • NaBr

  • NaOBr

  • Br2

  • None of the above


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45.

The reaction, ROH + H2CN2 in the presence of HBF4, gives the following product

  • ROCH3

  • RCH2OH

  • ROHCN2N2

  • RCH2CH3


46.

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

  • X Y
    Cl Cu/HCl
  • X Y
    Cl CuCl2/HCl
  • X Y
    Cl CuCl2/HCl
  • X Y
    Cl2 Cu2O/HCl

47.

How many tripeptides can be prepared by linking the amino acids glycine, alanine and phenyl alanine?

  • One

  • Three

  • Six

  • Twelve


48.

Consider the following reaction,

C2H5HCl + AgCN EtOH/H2O X (major)

Which one of the following statements is true for X ?

(I) It gives propionic acid on hydrolysis
(II) It has an ester functional group
(III) It has a nitrogen linked to ethyl carbon
(IV) It has a cyanide group

  • IV

  • III

  • II

  • I


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49.

When acetamide is hydrolysed by boiling with acid, the product obtained is

  • acetic acid

  • ethyl amine

  • ethanol

  • acetamide


50.

Which will not go for diazotisation?

  • C6H5NH2

  • C6H5CH2NH2


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