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Q.

The position of some metals in the electrochemical series in decreasing electropositive character is given as Mg > Al > Zn > Cu > Ag. What will happen if a copper spoon is used to stir a solution of aluminium nitrate? 

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a

The spoon will get coated with aluminium 

b

An alloy of aluminium and copper is formed 

c

The solution becomes blue 

d

There is no reaction 

answer is D.

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Detailed Solution

Cu can't displace Al3+ ion from aluminium nitrate. 

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