Which of the following cation is the best oxidising agent?EZn2+/Zn0=-0.76 VECu2+/Cu0=+0.34 VEAg+/Ag0=+0.80 VECr3+/Cr0=-0.74 V
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a
Zn2+
b
Cu2+
c
Ag+
d
Cr3+
answer is C.
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Detailed Solution
It is because EAg+/Ag0 has the highest value. Oxidising power is directly proportional to SRP values.Highest positive value indicates greatest tendency to convert from +n to zero state (greatest tendency to undergo reduction).