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Chemistry Test ...

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  • Question 1
    4 / -1

    The group \(14\) elements form _____________ hydrides.

  • Question 2
    4 / -1

    H2O2 changes Cr2O72- ion to CrO5 in an acidic medium, the oxidation state of Cr in CrO5 is

  • Question 3
    4 / -1

    The expression to be used to calculate the \(\mathrm{pH}\) of sodium bicarbonate solution (where \(K_{a_{1}}^{o}\) and \(K_{a_{2}}^{o}\) stand for the standard ionisation of \(H C O_{3}^{-}\) and \(C O_{3}^{2-}\), respectively) is

  • Question 4
    4 / -1

    What are elements F, Cl, Br, I and At commonly known as?

  • Question 5
    4 / -1

    The phenomenon in which polar crystals on heating produce electricity is called:

  • Question 6
    4 / -1

    Which of the following compounds is not a food additive?

  • Question 7
    4 / -1

    Given that \(E°\) values of \(Ag^{+}|Ag, K^{+}|K, Mg^{2+}|Mg\) and \(Cr^{3+}|Cr\) are \(0.80 V, – 2.93 V, – 2.37 V\) and \(– 0.74 V\), respectively, which of the following orders regarding the reducing power of metals is correct?

  • Question 8
    4 / -1

    In the given reaction

    \(A\) and \(B\) will respectively be:

  • Question 9
    4 / -1

    Choose the correct answer. A thermodynamic state function is a quantity:

  • Question 10
    4 / -1

    Elements of group \(13\) are part of which of the following block of elements?

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