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Hydrocarbons Test - 28

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Hydrocarbons Test - 28
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  • Question 1
    1 / -0

     

       Major Product 

    Solution

  • Question 2
    1 / -0

               

    Major Product (A) is : 

    Solution


  • Question 3
    1 / -0

    Solution


  • Question 4
    1 / -0

    Solution


  • Question 5
    1 / -0

    Product (B) will be : 

    Solution

  • Question 6
    1 / -0

    (Major ) Product (A) will be :  

    Solution


  • Question 7
    1 / -0

    Solution

  • Question 8
    1 / -0

    Product (A) will be :

    Solution


  • Question 9
    1 / -0

    Mono-chloro product (inculding steroisomers)are :

    Solution





  • Question 10
    1 / -0

    Arrange the following in decreasing order of their boiling points


    A) n-butane
    B) 2-methylbutane
    C) n-pentane
    D) 2,2-dimethylpropane

    Solution

    D is the correct answer.
    The boiling point of alkanes increases with increase in molecular mass and for the same alkane, the boiling point decreases with branching. Thus, the decreasing order of their boiling points is:
           C                                     B                                        D                                     
    n−Pentane>2−Methylbutane>2,2−Dimethylpropane
    > n−Butane
              A

  • Question 11
    1 / -0

      

    Solution

  • Question 12
    1 / -0

    products.
    Which of the following is not the free radical combination product in wurtz process.

    Solution

  • Question 13
    1 / -0

    Solution

  • Question 14
    1 / -0

    Methyl cyclohexane react with Br2 in presence of u.v. light major product will be

    Solution

  • Question 15
    1 / -0

    Solution


  • Question 16
    1 / -0

    Solution

  • Question 17
    1 / -0

     

    Correct order of rate of reaction will be

    Solution

    Reactivity of Alkyl Halide for Wurtz Rxn
    R - I > R - Br > R - Cl > R - F

  • Question 18
    1 / -0

    Which of the gases evolved on the surface of anode.

    Solution



  • Question 19
    1 / -0

    Suitable reagent for following cenversion will be :

    Solution

  • Question 20
    1 / -0

    2, 3-dimethyl butaneWhich of the following anion will be migrates towards anode to prepare 2, 3-dimethyl butane in the given reaction.

    Solution

  • Question 21
    1 / -0

    Most stableconfomer of product will be (across C2 — C3 bond) :

    Solution



    [ Most Stable Conformer of h butane across C2 - C3 bond ] 

  • Question 22
    1 / -0

     most stableconfomer of product will be :

    Solution


    Most stable conformer of n - propane

  • Question 23
    1 / -0

    Correct order of mono bromination of given compound is :

    Solution


    [ Most stable free radical is formed as intermidiate ] Order of Bromination = I > III > II >

  • Question 24
    1 / -0

    major product will be

    Solution

  • Question 25
    1 / -0

    In kolbe’s electrolytic synthesis the pOH of solution will be

    Solution

    in Kolbe’s eledrolysis process. NaOH / KOH is Formed at cathod so PH increases and POH decrease

  • Question 26
    1 / -0

    product will be :

    Solution



  • Question 27
    1 / -0

    Rate of decarboxylation of following carboxylic acid with sodalime will be in order

    Solution



    [rater of decorboxylation µ stability of corbanion]
    rate of decorboxylation = r1 > r2 > r3

  • Question 28
    1 / -0

    Benzoic acid  Product will be

    Solution

  • Question 29
    1 / -0

    Number of required O2 mole for complete combustion of one mole of propane-

    Solution

  • Question 30
    1 / -0

    How much volume of air will be needed for complete combustion of 10 lit. of ethane-

    Solution


    x mole oxygen are present in 5 x air
    22.4 liter ethan are Complete Combused to required 7/2   22.4 o2 gas

    Required volume of air for complete combustion = 3 5×5 = 175 liter

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