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Chemistry Test 183
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Chemistry Test 183
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  • Question 1/10
    4 / -1

    Catalytic hydrogenation of which of the following, gives a product that gives two monophotochlorination products (considering structural isomers only)?

    Solutions

     

  • Question 2/10
    4 / -1

    Stability of following alkenes in the increasing order is:

    Solutions

    No of hyperconjugation structures in I ,III ,IV and II are respectively 3,6,6 and 6.Trans is more stable than cis isomer.

     

  • Question 3/10
    4 / -1

    Which of the following can not give H2 gas with sodium metal ?

    Solutions

    Ketones do not give H2 gas with sodium metal.

     

  • Question 4/10
    4 / -1

    Select the structure with correct numbering for IUPAC name of the compound.

    Solutions

    OH is senior than SH.

     

  • Question 5/10
    4 / -1

    Find the acid strength order:

    (I) O2N - CH2 - COOH
    (II) F - CH2 - COOH
    (III) H3CO - CH2 - COOH 
    (IV) CH3 - CH2 - COOH

    Solutions

    (Acidity ∝ -I strength of groups attached)

    -I strength is in order -NO2 > -F> -OCH3 & -CH2CH3 is +I group

     

  • Question 6/10
    4 / -1

    Mark the strongest acid in following questions

    Solutions

    -NO2 at para position increases acidity at the maximum extent due to its strong -m and -I effect.

     

  • Question 7/10
    4 / -1

    Consider the set of three compounds, which is true about basicity of these compounds in water ?

    (1) MeNH2
    (2) Me2NH and
    (3) Me3N

    Solutions

    In RNH2, R2NH, R3N ; the order of base strength is 2° > 1° > 3° when R = Me and the order is 2° > 3° > 1° when R = Et. 

     

  • Question 8/10
    4 / -1

    A saturated hydrocarbon 'X' having molecular formula (C6H12) will form only one monochloro product on reaction with Cl2 in presence of ultravoilet light. Calculate the number of dichloroproducts (structural only) of the same compound 'X'.

    Solutions

     

  • Question 9/10
    4 / -1

    Which resonating structure is more contributor to the actual structure ?

    Solutions

    The structures with the least separation of formal charges are more stable. In structure C the charges are closer together making it more stable. 

     

  • Question 10/10
    4 / -1

    The correct structure of tautomer of the following compound 

    Solutions

     

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