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Electrochemistry Test - 30
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Electrochemistry Test - 30
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  • Question 1/10
    4 / -1
    In a galvanic cell, the salt bridge
  • Question 2/10
    4 / -1
    The standard reduction potential data at 25oC is given below
    Eo(Fe3+/Fe2+) = 0.77V
    Eo(Fe2+/Fe) = -0.44V
    Eo(Cu2+?Cu) = + 0.34 V
    Eo(Cu+/Cu) = + 0.52 V
    Eo (O2(g) + 4H+ + 4e-→2H2O) = 1.23 V
    Eo (O2 (g) + 2H2O + 4e- →4OH-) = + 0.40 V
    Eo (Cr3+/Cr) = -0.74 V;
    Eo(Cr2+/Cr) = -0.91 V
    Match Eo of the redox pair in List I with the values given in List II and select the correct answer using the codes given below the lists

  • Question 3/10
    4 / -1
    The standard reduction potential for Zn2+/Zn, Ni2+ /Ni and Fe2+/Fe are - 0.76, - 0.23 and - 0.44 V respectively. The reaction X + Y 2+ → X 2+ + Y will be spontaneous when
  • Question 4/10
    4 / -1

    Solutions

  • Question 5/10
    4 / -1
    The standard oxidation potential of zinc and silver in water at 298 K are
    Zn(s) → Zn2+ + 2e–, E = 0.76V, Ag(s) → Ag+ + e–, E = –0.80V
    which of the following reactions actually takes place?
  • Question 6/10
    4 / -1
    The electric charge for electrode deposition of one gram equivalent of substance is
  • Question 7/10
    4 / -1
    The one that is a good conductor of electricity in the following list of solids is
  • Question 8/10
    4 / -1

  • Question 9/10
    4 / -1
    Which one of the following will increase the voltage of the cell
    Sn(s) + 2Ag+(aq) → Sn2+(aq) + 2Ag(s)?
    Solutions

  • Question 10/10
    4 / -1
    If same amount of electricity is passed through aqueous solution of AgNO3 and CuSO4 and the number of Ag and Cu atoms deposited are x and y respectively. Then.
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