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Hydrocarbons Te...

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  • Question 1
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    Q. How many different alkenes are formed when 2 -chlorobutane is treated with ethanolic solution of KOH? 

     

  • Question 2
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    What is the major dehydration product in the following reaction ?

  • Question 3
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    Which of the following compounds will lose optical activity after the reaction ?

  • Question 4
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    In which of the following reactions , only single is omer of alkene is formed ?

  • Question 5
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    Consider the following reaction .

    The correct statement concerning product of the above reaction is 

  • Question 6
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    An optically active hydrocarbon X has molecular formula C6H12. X on catalytic hydrogenation gives optically inactive C6H14. X could be

  • Question 7
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    Which of the following reactions produces an alkene?

  • Question 8
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    What is the major product of the reaction given below ?
    meso -2 ,3 -dichiorobutane + Nal (aq) →

  • Question 9
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    Alkane with more boiling point is:

     

  • Question 10
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    Calcium heptane dioate on distillation produces :

     

  • Question 11
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    Consider the following reaction.

    The correct statement concerning product alkene(s) is/are 

     

  • Question 12
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    Identify the addition reaction which is not undergone by the alkenes

  • Question 13
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    Direction (Q, Nos. 13 - 16) This section is based on Statement I and Statement II. Select the correct answer from the codes given below.

    Q.

    Statement I : 2-butyne on reduction with Pd/CaCO3 gives c/s-2-butene.
    Statement II : Hydrogenation proceed through adsorption mechanism.

  • Question 14
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    Statement I : 2, 3-dibromo butane with Zn-dust gives frans-2-butene as major product.

    Statement II : frans-2-butene is more stable than c/s-2-butene.

  • Question 15
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    Statement I :  2-bromobutane with (CH3)3COK in tertiary butanol gives 1 -butene as major product.
    Statement II : Very strong base (CH3)3COK in tertiary butanol brings about E-2 elimination reaction.

  • Question 16
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    Statement I : Boiling point of an alkene is slightly greater than that of its hydrogenated alkane.
    Statement II : Alkenes have stronger van der Waals’ force of attraction than alkanes.

  • Question 17
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    Sodium acetate can be converted to ethane by which of the following method?

     

  • Question 18
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    Which of the following alkane has the least boiling point?

  • Question 19
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    The hybridisation of carbon atoms in ethane doesn’t change during :

     

  • Question 20
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    Identify A and B in the following reaction sequence:

     

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