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Amines · Question 45

AIPMT 2010 (Prelims)MCQEasy📈 Topic in 38% papers+4−1
1

Aniline in a set of the following reactions yielded a coloured product Y. [figure] The structure of 'Y' would be

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]

Answer

(1) [figure]

Solution

Diazotisation: C6H5NH2 + NaNO2 + 2HCl 273-278 K C6H5N2+Cl- + NaCl + 2H2O

X = benzenediazonium chloride

Coupling: the diazonium ion attacks the para position of N,N-dimethylaniline:

C6H5N2+Cl- + C6H5N(CH3)2 C6H5-N=N-C6H4-N(CH3)2 + HCl

Y = p-(N,N-dimethylamino)azobenzene, a coloured azo dye (option 1).

Answer: (1)

AIPMT 2010 (Prelims)

Keep practising — Amines

2

Predict the product. [figure]

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
AIPMT 2009
3

In a reaction of aniline a coloured product C was obtained. [figure] The structure of C would be

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
AIPMT 2008
4

Which one of the following on reduction with lithium aluminium hydride yields a secondary amine?

  1. Methyl isocyanide
  2. Acetamide
  3. Methyl cyanide
  4. Nitroethane
AIPMT 2007
5

In a set of reactions propionic acid yielded a compound D. CH3CH2COOH SOCl2 B NH3 C [Br2]KOH D The structure of D would be

  1. CH3CH2NH2
  2. CH3CH2CH2NH2
  3. CH3CH2CONH2
  4. CH3CH2NHCH3
AIPMT 2006
6

Which of the following is more basic than aniline?

  1. Benzylamine
  2. Diphenylamine
  3. Triphenylamine
  4. p-Nitroaniline
AIPMT 2006
7

The major organic product formed from the following reaction : [figure] is

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
AIPMT 2005
8

Electrolytic reduction of nitrobenzene in weakly acidic medium gives

  1. N-phenylhydroxylamine
  2. nitrosobenzene
  3. aniline
  4. p-hydroxyaniline
AIPMT 2005
9

Aniline in a set of reactions yielded a product D. [figure] The structure of the product D would be

  1. C6H5NHOH
  2. C6H5NHCH2CH3
  3. C6H5CH2NH2
  4. C6H5CH2OH
AIPMT 2005
10

In a reaction of aniline a coloured product C was obtained. [figure] The structure of C would be

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
AIPMT 2004
11

The final product C, obtained in this reaction [figure] would be

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
AIPMT 2003

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