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

271.

Example of geometrical isomerism is

  • 2-butanol

  • 2-butene

  • butanal

  • 2- butyne


272.

A metal 'M' reacts with N2 to give a compound 'A' (M3N). 'A' on heating at high temperature gives back 'M' and 'A' on reacting with H2O give a gas B. 'B' turns CuSO4 solution blue on passing through it. M and B can be

  • Al and NH3

  • Li and NH3

  • Na and NH3

  • Mg and NH3


273.

Electromeric effect is

  • permanent effect

  • temporary effect

  • resonance effect

  • inductive effect


274.

CH3CH2CH(OH)CH3 and CH3(CH2)2CH2OH can be distinguished by

  • Lucas test

  • Iodoform test

  • Victor-Meyer's test

  • All of the above


Advertisement
275.

The IUPAC name of 

  • bicyclo (5.5.0) nonane

  • biphenyl

  • spiro (3.5) nonane

  • cyclobutyl cyclohexane


276.

The compound which does not exhibit geometrical isomerism, is

  • CH3CH=CHCOOH

  • Br-CH=CH-Br

  • C6H5CH=NOH


Advertisement

277.

Which of the following is the most reactlve towards ring nitration ?

  • benzene

  • toulene

  • m-xylene

  • mesitylene


D.

mesitylene

Nitration of benzene is an electrophlic substitution reaction and presence of electron releasing group (like -CH3, -C2H5) activates the ring towards electrophilic substitution at ortho/para position. Mesitylene have three CH3 groups.

Thus, it is most reactive towards ring nitration.


Advertisement
278.

Racemic compound has

  • equimolar mixture of enantiomers

  • 1 : 1 mixture of enantiomer and diastereomer

  • 1 : 1 mixture of diastereomers

  • 1 : 2 mixture of enantiomers


Advertisement
279.

In which of the following ways does the hydride ion tend to function ?

  • An electrophile

  • A nucleophile

  • A free radical

  • An acid


280.

The following compound differ in

  • configuration

  • conformation

  • structure

  • chirality


Advertisement