Given the standard electrode potentials: K+/K = – 2.93 V Ag+/Ag = 0.80V Hg2+/Hg = 0.79 V Mg2+/Mg = –2.37 V Cr3+/Cr = –0.74 V. Arrange these metals in their increasing order of reducing power.
answer: Ag < Hg < Cr < Mg < K.
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79.Why is not possible to determine for weak electrolytes by extrapolation?
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80.What is the use of platinum foil in the hydrogen electrode?
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