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Question

Given $$E^{o}_{Ag^{+}/Ag}=+0.80\ V; E^{o}_{Cu^{2+}/Cu}=+0.34\ V; E^{o}_{Fe^{3+}/Fe^{2+}}=+0.76\ V; E^{o}_{Ce^{4+}/Ce^{3+}}=+1.60\ V$$
Which of the following statements is not correct?

A
$$Fe^{3+}$$ does not oxidise $$Ce^{3+}$$.
B
$$Fe^{3+}$$ reduces $$Cu^{2+}$$ to $$Cu$$.
C
$$Cu$$ reduces $$Ag^{+}$$ to $$Ag$$.
D
$$Ag$$ will reduce $$Cu^{2+}$$ to $$Cu$$.
Solution
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Correct option is C. $$Ag$$ will reduce $$Cu^{2+}$$ to $$Cu$$.
Since $$Ag$$ has higher reduction potential than $$Cu, Ag$$ will not reduce $$Cu^{2+}$$ to $$Cu. Cu$$ can reduce $$Ag^{+}$$ to $$Ag$$.
Therefore, option C is a correct Answer.

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