The compound formed by the ozonolysis of acetylene : from Chemis

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 Multiple Choice QuestionsMultiple Choice Questions

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


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282.

The compound formed by the ozonolysis of acetylene :

  • glycol

  • acetic acid

  • ethylene ozonide

  • glyoxal


A.

glycol

CHCH Zn / H-OHO3 |CHOCHOglycol + H2O2


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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.


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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.


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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.


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