Propene on hydroboration and oxidation produces from Chemistry H

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 Multiple Choice QuestionsMultiple Choice Questions

301.

Degree of unsaturation of A= 2 double or triple bond. Identify A.

  • None of these 


302.

Assertion: Cis-2-butene gives meso-2, 3-butanediol with dilute alkaline KMnO4 solution.

Reason : Dilute alkaline KMnO4 solution gives trans addition with alkenes.

  • 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


303.

Assertion : The presence of Ag+ enhances the solubility of alkenes in water.

Reason : Alkenes are weakly polar in nature.

  • 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


304.

Identify the final product.

  • None of these


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305.

CHCH H2SO4HgSO4 H2OCH3MgBr P/Br2

  • CH3CH(Br)CH3

  • CH3CH2CH2Br

  • CH2=CH-Br

  • BrCH=CH-CH3


306.

Number of bonds in benzene :

  • 6σ and 3π

  • 12σ and 3π

  • 3σ and 12π

  • 6σ and 6π


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307.

Propene on hydroboration and oxidation produces

  • CH3CH2CH2OH

  • CH3CHOHCH3

  • CH3CHOHCH2OH

  • CH3CH2CHO


A.

CH3CH2CH2OH

Propene on hydroboration and oxidation produces CH3CH2CH2OH.

3CH3-CH=CH2 THFBH3 (CH3CH2CH2)3OHH2O2 3CH3CH2CH2OH


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308.

C6H6  H2SO4HNO3 X FeCl3Cl2 Y

In the above sequence Y can be

  • 3-nitrochlorobenzene

  • 1-nitrochlorobenzene

  • 4-nitrochlorobenzene

  • none of these


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309.

Which of the following is aromatic?


310.

Which of the following species participate in sulphonation of benzene ring?

  • H2SO4

  • SO3

  • HSO3-

  • SO2-


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