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Hydrocarbons Test - 7
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Hydrocarbons Test - 7

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  • Question 1/10
    1 / -0

    The correct IUPAC name of the following alkane is

    Solutions

    While writing the IUPAC name, the chain with maximum number of substituents is selected as the longest chain and the numbering is done, giving the lowest location to the substituents.

    Hence, the correct IUPAC name of the given compound is 3,6-diethyl-2-methyloctane.

     

  • Question 2/10
    1 / -0

    Which of the following methods/reactions is used for the preparation of pure methane?

    Solutions

    Acetic acid salt on heating with soda lime gives methane.

     

  • Question 3/10
    1 / -0

    An aqueous solution of compound A gives ethane on electrolysis. The compound A is

    Solutions

    The reactions is called Kolbe's electrolysis.

     

  • Question 4/10
    1 / -0

    Which of the following compounds has the lowest boiling point?

    Solutions

    Of all the options listed, CH3CH2CH2CH3 has the least number of C-atoms and hence, has the lowest boiling point.

     

  • Question 5/10
    1 / -0

    Ethylene reacts with Baeyer's reagent to give

    Solutions

     

  • Question 6/10
    1 / -0

    What would be the product formed when 1-bromo-3-chlorocyclobutane reacts with two equivalents of metallic sodium in ether?

    Solutions

    This is Wurtz reaction and only option (4) is correct.
    There are two possible products, but the intramolecular reaction is faster than the intermolecular reaction.

     

  • Question 7/10
    1 / -0

    In the Newman projection for 2, 2-dimethylbutane, X and Y, respectively, will be

    A. H and H
    B. H and C2H5
    C. C2H5 and H
    D. CH3 and CH3

    Solutions

    The Newman projection formula using C2 and C3 is:

     

  • Question 8/10
    1 / -0

    In the given configuration, C2 is rotated about C2-C3 bond anticlockwise by an angle of 120°. As a result, we get

    Solutions

    Gauche conformation will be obtained on rotation through an angle of 120°.

     

  • Question 9/10
    1 / -0

    Which of the following compounds will exhibit geometrical isomerism?

    Solutions

     

  • Question 10/10
    1 / -0

    1-chlorobutane on reaction with alc. KOH gives

    Solutions

     

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