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Chemistry Test 134
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Chemistry Test 134
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  • Question 1/10
    4 / -1

    Reduction potential of following electrode Pt, H2 (4atm) | H2SO4 (0.01M) is-

    Solutions

     

  • Question 2/10
    4 / -1

    If molecular weight of As2S3 is M. Then in the following reaction As2S3 + 7NaClO3 + 12NaOH → 2Na3AsO4 + 7NaClO + 3Na2SO4 + 6H2O. the equivalent weight of As2S3 is

    Solutions

    Both As and S go under oxidation
    As2S3→ AsO43(–) + 4e(–) (oxidation of As)
    As2S3→ 3SO42(–) + 24e(–) (oxidation of S)
    Total electrons = 24 × 4 = 28 = n-factor

     

  • Question 3/10
    4 / -1

    Which will give only one product (excluding stereoisomer) when undergoing E2 reaction ?

    Solutions

    Which are identical product

     

  • Question 4/10
    4 / -1

    Assume that a particular amino acid has isoelectric point as 6.0. In a solution at PH 1.0 which of the following will predominate

    Solutions

    In acidic medium z witter ion

     

  • Question 5/10
    4 / -1

    C – 2 and C – 3 configuration of

    is -

    Solutions

    According to CIP rule
    Clockwise is R configuration and Anti-clockwise is S configuration 

     

  • Question 6/10
    4 / -1

    End product in the reaction is,

    Solutions

    Step 1.

    Acid base reaction

    Step 2.

     

  • Question 7/10
    4 / -1

    Which of the following does not occur in Bessemer’s converter

    Solutions

    n Bessemer’s converter
    2CuFeS2 + O2→Cu2S + 2 FeS + SO2 does not take place

     

  • Question 8/10
    4 / -1

    For reaction CO(g) + NO2(g)  CO2(g) +NO(g) Energy profile diagram is given below.

    What is the 'activation energy' of the reaction?

    Solutions

    Activation energy is energy from reactant to highest energy barrier
    So activation energy is ‘x’ hence A option is correct

     

  • Question 9/10
    4 / -1

    Which of the following is buffer-

    Solutions

    Buffer is conjugate acid and salt of conjugate base pair.

     

  • Question 10/10
    4 / -1

    Nitrogen dioxide cannot be obtained from

    Solutions

     

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