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Q.

What happens when a piece of silver metal is added to copper sulphate solution?


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a

Silver sulphate is formed

b

Silver displaces copper sulphate

c

Oxygen gas is evolved

d

No reaction 

answer is D.

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Detailed Solution

Concept: Potassium ( K ) is the most reactive and platinum ( Pt ) is the least reactive in the series. In a single displacement reaction, which only occurs when a less reactive element in a compound may be swapped out for a more reactive element, the higher ranked element in the activity series is more reactive, as we are aware.
Therefore, when silver Ag metal is added to copper sulphate  CuS O 4  solution, no reaction takes place as silver is less reactive than that of copper and cannot displace copper from its solution.
Ag+CuS O 4 =No reaction
Hence, when a piece of silver metal is added to copper sulphate solution no reaction occurs.
Hence, the correct answer is option 4.
 
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