A) \[A{{g}^{+}}\]
B) \[C{{u}^{2+}}\]
C) \[Z{{n}^{2+}}\]
D) \[F{{e}^{3+}}\]
Correct Answer: C
Solution :
In an aqueous solution hydrogen will not reduce \[Z{{n}^{2+}}\] to Zn (s) as its reduction potential is lower than hydrogen. The decreasing order of reducing agent is\[Z{{n}^{2+}}>H>C{{u}^{2+}}>F{{e}^{3+}}>A{{g}^{+}}\]
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