101.The standard reduction potential values of three metal cations Xa+, Yb+ and Zc+are + 0.52, – 3.03, – 1.18 V respectively. Arrange the corresponding metals, in the order of their increasing reducing power.
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102.Explain with the help of a diagram the effect of change in concentration of solution on the molar conductance of (i) a weak electrolyte, (ii) a strong electrolyte.
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103.State two advantages of H2O fuel cell over ordinary cell.
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104.What happens during corrosion of a metal? State the electrochemical basis of corrosion of iron.
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105.
are -0.25 V and + 0.34 respectively at 298 K. Formulate the self operating galvanic cell for this electrode pair. What reaction takes place in its operation? How is the ΔG° for this reaction related to the cell e.m.f.?
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106.How does molar conductance of a strong electrolyte vary with its concentration in solution?
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107.How does molar conductance of a weak electrolyte vary with its concentration in solution?
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Long Answer Type
108.What do you understand by standard potential of a half-cell? How is the electrode potential of a half-cell determined?
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Short Answer Type
109.Define molar conductivity of an electrolytic solution. Mention the effect of temperature on molar conductivity.
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110.Write anode and cathode reactions from electrolysis of water. How much charge will be transported for the decomposition of 3.6 g of H2O? [F = 96500 C mol–1]
Short Answer Type
Long Answer Type
