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

Advertisement
281.

Which of the following alkenes will give same product by any method out of hydration, hydroboration-oxidation and oxymercuration-demercuration? 

  • CH3CH=CH2

  • CH3CH=CHCH3

  • CH3CH(CH3)CH=CH2


282.

The compound formed by the ozonolysis of acetylene :

  • glycol

  • acetic acid

  • ethylene ozonide

  • glyoxal


283.

The compound which have conjugate double bond :

  • butyne

  • butylene

  • isobutylene

  • butadiene


284.

Assertion : Staggered conformation of ethane is 12.5 kJ mol-1 more stable than the eclipsed conformation.

Reason : The two conformations of ethane cannot be separated at room temperature.

  • If both assertion and reason are true and reason is the correct explanation of assertion

  • If both assertion and reason are true but reason is not the correct explanation of assertion

  • If assertion is true but reason is false

  • If both assertion and reason are false.


Advertisement
285.

The C-H bond energy in ethane , ethene and ethyne :

  • more in ethene

  • more in ethane

  • more in ethyne

  • same in all these


286.

The IUPAC name of the given compound is (CH3)3CCH2C(CH3)3

  • 2, 3,4,4-tetramethylpentane

  • 1, 2, 2, 4-tetramethylpentene

  • 2,2,4, 4-tetramethylpentane

  • 3, 3-dimethylpentane.


287.

What is 'A.' in the following reaction?


288.

Assertion: Saturated hydrocarbons are chemically less reactive.

Reason : All isomeric paraffins have same parent name.

  • If both assertion and reason are true and reason is the correct explanation of assertion.

  • If both assertion and reason are true but reason is not the correct explanation of assertion.

  • If assertion is true but reason is false.

  • If both assertion and reason are false.


Advertisement
289.

Assertion: Chloroform is stored in dark coloured bottles.

Reason: Chronic chloroform exposure may cause damage to liver and kidneys.

  • If both assertion and reason are true and reason is the correct explanation of assertion.

  • If both assertion and reason are true but reason is not the correct explanation of assertion.

  • If assertion is true but reason is false.

  • If both assertion and reason are false.


290.

Assertion : Saturated hydrocarbons are chemically less reactive.

Reason: All isomeric paraftins have same parent name.

  • If both assertion and reason are true and reason is the correct explanation of assertion.

  • If both assertion and reason are true but reason is not the correct explanation of assertion.

  • If assertion is true but reason is false.

  • If both assertion and reason are false.


Advertisement