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Copper is more reactive than silver. This is explained as

Cu + AgNO3 (aq) → CuO(NO3)2 (aq) + 2Ag. It reveals 

A) It displaces silver from silver nitrate thus giving shining appearance on top 

B) It decomposes silver from silver nitrate giving no appearance change 

C) Both A’ and ‘B’ sometimes 

D) Not explained

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A) It displaces silver from silver nitrate thus giving shining appearance on top

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