Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.
Advertisement

 Multiple Choice QuestionsMultiple Choice Questions

81.

An organic compound X having molecular formula C3H11N reacts with p-toluene sulphonyl chloride to form a compound Y that is soluble in aqueous KOH. Compound X is optically active and reacts with acety lchloride to form compound Z. Identify the compound Z

  • CH3CH2CH2CH2NHCOCH3

  • CH3CH2CH(CH3)NHCOCH3

  • CH3(CH3)CHCH2NHCOCH3


Advertisement

82.

Diethyl amine when treated with nitrous acid yields

  • diethyl ammonium nitrite

  • ethyl alcohol

  • N-nitroso diethyl amine

  • triethyl ammonium nitrite


C.

N-nitroso diethyl amine

When diethyl amine treated with nitrous acid, it yields N-nitroso diethyl amine.

H5C2-NH-C2H5 + HONO -H2O H5C2 - N(C2H5) - N = ON- notroso diethyl amie (yellow oily liquid)


Advertisement
83.

The amine 'A' when treated with nitrous acid gives yellow oily substance. The amine A is

  • triethylamine

  • trimethylamine

  • aniline

  • methylphenylamine


84.

In case of substituted aniline the group which decreases the basic strength is

  • -OCH3

  • -CH3

  • -NH2

  • -C6H5


Advertisement
85.

Which of the following statement(s) is/are incorrect in case of Hofmann bromamide degradation?

  • Reaction is useful for decreasing length of carbon chain by one carbon atom

  • It gives tertiary amine

  • It gives primary amine

  • Aqueous or alco. KOH is used with bromine


86.

The amine, which reacts with p-toluenesulphonyl chloride to give a clear solution, which on acidification gives insoluble compound is

  • C2H5NH2

  • (C2H5)2NH

  • (C2H5)3N

  • CH3NHC2H5


87.

Which one of the following can be prepared by Gabriel phthalimide synthesis?

  • Aniline

  • o- toluidine

  • Benzylamine

  • N-methylethanamine


88.

0ne mole of hydrazine (N2H4) loses 10 moles of electrons in a reaction to form a new compound X. Assuming that all the nitrogen atoms in hydrazine appear in the new compound, what is the oxidation state of nitrogen in X? (Note - There is no change in the oxidation state of hydrogen in the reaction).

  • -1

  • -3

  • +3

  • +5


Advertisement
89.

Which one of the following is used as a test for aliphatic primary amines?

  • Tollen's test

  • Fehling's test

  • lsocyanide test

  • Azo dye test


90.

When methanamine is treated with benzoyl chloride, the major product is

  • N-phenylethanamide

  • N-methylbenzamide

  • benzanilide

  • acetophenone


Advertisement