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Question

A galvanic cell involves the following reactions:
Zn(s)+2Ag+(aq.)Zn2+(aq.)+2Ag(s)
Select the correct statements among the following.

A
Zinc is negatively charged
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B
The given redox process is spontaneous
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C
Ag++eAg, takes place at anode
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D
Zn(s)Zn2++2e, takes place at cathode
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Solution

The correct option is B The given redox process is spontaneous
In the given cell reaction.
Zinc is getting oxidised and Ag is getting reduced;
at anode: Zn Zn2+ + 2e
at cathode: 2Ag+ + 2e 2Ag
after oxidation the concentration of Zn2+ ion increases and solution becomes negatively charged;
hence, only option B is correct.

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