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Alcohols Test - 4
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Alcohols Test - 4
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  • Question 1/10
    1 / -0.25

     

    Only One Option Correct Type

    Direction (O. Nos. 1-8) This section contains 8 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.

    Q. 

    Arrange the following alcohols in the increasing order of reactivity with HBr.
    I. benzyl alcohol
    II. p-methyl benzyl alcohol
    III. p-nitrobenzyl alcohol
    IV. p-chlorobenzyl alcohol

     

    Solutions

     

     

    Reactive intermediate carbocation is involved, hence greater the stability of carbocation, greater the reactivity of corresponding alcohols. Methyl group gives electron donating + I-effect, increases stability of carbocation, nitro group and chloro have both - I-effect, decreases stability of carbocation. Nitro group has stronger electron withdrawing power than chloro, nitro derivative is further less reactive than chloro derivative.

     

     

  • Question 2/10
    1 / -0.25

     Which is the most appropriate reagent for the following oxidation reaction?

    CH3 —CH = CH —CH2 OH  →CH3 —CH =CH —COOH  

    Solutions

    It is Jone 's reagent which does not affect the olefinic bonds.

  • Question 3/10
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    What is the major product of the following reaction ?

    Solutions

  • Question 4/10
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    Which of the following is true statem ent regarding reaction of c/s and trans 2-hexene with CH3 OH/H+ ?

    Solutions

    Both cis and trans 2-hexene form s the same carbocation, hence react at same rate.

  • Question 5/10
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    The major product formed in the following reaction is  

    Solutions

  • Question 6/10
    1 / -0.25

    The relative rate of reaction of the following with H2 SO4

    Solutions

    Reaction proceeds via carbocation intermediates. Hence, greater the stability of carbocation, greater the reactivity.

  • Question 7/10
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    The major product in the following reaction is

    Solutions


  • Question 8/10
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    What is the major product of the following reaction?

    Solutions

  • Question 9/10
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    What is/are the expected product(s) in the following reaction?

     

    Solutions

     

     

    Reaction proceeds via carbocation intermediates.


     

     

  • Question 10/10
    1 / -0.25

     

    What is/are the possible dehydration product(s) in the following reaction?

     

    Solutions

     

     


     

     

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