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Chemistry Test ...

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  • Question 1
    3 / -1

    Which of the following is responsible for the depletion of the ozone layer in the upper strata of the atmosphere?

  • Question 2
    3 / -1

    Which of the following is most acidic ?

  • Question 3
    3 / -1

    Match List-I with List-II.

    List-I List-II
    a \(2 {SO}_{2}(g)+{O}_{2}(g) \rightarrow 2 {SO}_{3}(g)\) i Acid rain
    b \({HOCl}(g) \stackrel{hv}{\longrightarrow} \dot{{O}} {H}+\dot{{C}} {l}\) ii Photo chemical Smog
    c \({CaCO}_{3}+{H}_{2} {SO}_{4} \rightarrow {CaSO}_{4}+{H}_{2} {O}+{CO}_{2}\) iii Ozone depletion
    d \({NO}_{2}(g) \stackrel{h \nu}{\longrightarrow} {NO}(g)+{O}(g)\) iv Tropospheric pollution
    Choose the correct answer from the options given below.

  • Question 4
    3 / -1

    The rate constant of a reaction is \(0.01 \mathrm{~s}^{-1}\), how much time does it take for \(2.4 \mathrm{~mol} \mathrm{~L}^{-1}\) concentration of reactant reduced to \(0.3 \mathrm{~mol} \mathrm{~L}^{-1}\) ?

  • Question 5
    3 / -1

    The rate constant for a first order reaction is \(4.606 \times 10^{-3} s ^{-1}\). The time required to reduce \(2.0~ g\) of the reactant to \(0.2~ g\) is:

  • Question 6
    3 / -1

    Which belongs to the actinide series?

  • Question 7
    3 / -1

    Which of the following is considered to be the fourth state of matter?

  • Question 8
    3 / -1

    ______ is a mode of heat transfer by actual motion of matter.

  • Question 9
    3 / -1

    Which is the strongest acid in the following?

  • Question 10
    3 / -1

    Which among the following is the strongest acid?

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