Identify the redox reaction taking palce in a beaker.

Options

A. `Zn_((s))+Cu_((aq))^(2+)rarrAn_((aq))^(2+)+Cu_((s))`
B. `Cu_((s))+2Ag_((aq))rarrCu_((aq))^(2+)+2Ag_((s))`
C. `Cu_((s))+Zn_((aq))^(2+)rarr Zn_((s))+Cu_((aq))^(2+)`
D. `2Ag_((s))+Cu_((aq))^(2+)rarr2Ag_((aq))^(+)+Cu_((s))`

Answer

B

Explanation

Since copper is more reactive than silver, it displaces `Ag^(+)` ions from its salt solution which get deposited on the copper rod.