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Chemistry Test-...

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  • Question 1
    4 / -1

    The gaseous envelope around the earth is known as the atmosphere. The lowest layer of this is extended up to 10 km from sea level, this layer is:

  • Question 2
    4 / -1

    In Bohr's theory of atom, the energy difference between two successive energy levels:

  • Question 3
    4 / -1

    \(12 {~g}\) of urea is present in 1 litre of solution and \(68.4 {~g}\) of sucrose is separately dissolved in 1 litre of another sample of solution. The lowering of vapour pressure of first solution is:

  • Question 4
    4 / -1

    Theory of 'active mass' indicates that the rate of chemical reaction is directly proportional to the :

  • Question 5
    4 / -1

    NADP is:

  • Question 6
    4 / -1

    Consider the change in oxidation state of Bromine corresponding to different emf values as shown in the diagram below:

    Then the species undergoing disproportionation is:

  • Question 7
    4 / -1

    The reaction \(2 \mathrm{~N}_2 \mathrm{O}(\mathrm{g}) \rightarrow 2 \mathrm{~N}_2(\mathrm{g})+\mathrm{O}_2(\mathrm{g})\) has \(\Delta \mathrm H^{\circ}=-163.14 \mathrm{~kJ}\). What is the value of \(\Delta \mathrm U\) for the decomposition of \(180 \mathrm{~g}\) of \(\mathrm{N}_2 \mathrm{O}\) at \(25^{\circ} \mathrm{C}\)?[ Take\(\mathrm{R}=8.314 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}\) ]

  • Question 8
    4 / -1

    The most electropositive halogen is:

  • Question 9
    4 / -1

    Which one of the following statements is wrong?

  • Question 10
    4 / -1

    Amine is not formed in the reaction:

    I. Hydrolysis of RCN

    II. Reduction of \(R C H=N O H\)

    III. Hydrolysis of RNC

    IV. Hydrolysis of \(R C O N H_{2}\)

    The correct answer is:

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