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Chemistry Test ...

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  • Question 1
    4 / -1

    A cell is prepared by dipping a chromium rod in 1M Cr2(SO4)3 solution and an iron rod in 1M FeSO4 solution. The standard reduction potentials of Chromium and Iron electrodes are -0.75 V and -0.45 V respectively. What will be the standard EMF of the cell?

  • Question 2
    4 / -1

    The oxidation number of P in Ba(H2PO2)2, Ba(H2PO3)2 and Ba(H2PO4)2 are respectively

  • Question 3
    4 / -1

    The oxidation half reaction for following reaction is

    Fe2+(aq) + Cr2O72-(aq) → Fe3+ (aq) + Cr3+(aq)

  • Question 4
    4 / -1

    Of the following reactions, only one is a redox reaction. Identify it

  • Question 5
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    The oxidation states of sulphur in the anions  follow the order

  • Question 6
    4 / -1

    In a reaction, 2Ag + 2H2SO4 → Ag2SO4 + H2O + SO2, H2SO4 acts as:

  • Question 7
    4 / -1

    Reduction never involves:

  • Question 8
    4 / -1

    In the reaction, 4Fe + 3O2 → 4Fe3+ + 6O2– which of the following statements is incorrect?

  • Question 9
    4 / -1

    In which of the following molecules octet rule is not followed?

  • Question 10
    4 / -1

    Among the following the electron deficient compound is

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