In the silver plating of copper, K[Ag(CN...

In the silver plating of copper, `K[Ag(CN)_(2)]` is used instead of `AgNO_(3)` . The reason is

(a) a thin layer of `Ag` is formed on `Cu`

(b) more heat is required

(d) less availability of `Ag^(+)` ion as `Cu` cannot displace `Ag` from `Ag(CN)_2`

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The correct Answer is:

Less availability of `Ag^(+)` ion as `Cu` cannot displace `Ag` from `Ag(CN)_2`

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