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Chemistry Test ...

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  • Question 1
    4 / -1

    On the basis of the electrochemical theory of aqueous corrosion, the reaction occuring at the cathode is

  • Question 2
    4 / -1

    What is the process of nitriding used in the treatment of steel?

  • Question 3
    4 / -1

    Iron, once dipped in concentrated H2SO4 does not displace copper from copper sulphate solution, because

  • Question 4
    4 / -1

    A blue colouration is not obtained when

  • Question 5
    4 / -1

    The reaction of CO + HCl in the presence of AlCl3 with benzene to form benzaldehyde is called

  • Question 6
    4 / -1

    The reaction of RCN with R’MgX, followed by hydrolysis gives

  • Question 7
    4 / -1

    Consider the following substances:

    1. C6H5CHO

    2. C6H5COCH3

    3. C6H5COC6H5

    The correct order of reactivity towards nucleophilic addition reaction is

  • Question 8
    4 / -1

    An organic compound of molecular formula, C3H6O, forms 2, 4-dinitorphenylhydrazone, but gives negative tollen’s test. The compound is

  • Question 9
    4 / -1

    Match list I with list II and select the correct answer using the codes given below.

      List - I   List - II
    (a)

    Formalin

    		 (1)

    Trimer of HCHO 
    (b)

    trioxane

    		 (2)

    Compounds of the general formula, 

    R2C = C = O 
    (c)

    Ketene

    		 (3)

    A tetramer of acetaldehyde
    (d)

    Metaldehyde

    		 (4)

    40% aqueous solution of HCHO

  • Question 10
    4 / -1

    Consider the following compounds :

    1. Phenol

    2. o-nitrophenol

    3. m-nitrophenol

    4. p-nitrophenol

    Place these compounds in the decreasing order of acidity

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