Question

The reaction of iron nail with copper sulphate solution is _________ reaction.

• A. Combination
• B. Decomposition
• C. Displacement
• D. Double displacement

Answer 1

The correct option is C Displacement

Since iron is more reactive than copper it will displace copper from its salt solutions and form a salt of ferrous sulphate.

$F{e}_s$ + $CuS{O}_4$ $⟶FeS{O}_4+C{u}_s$

In this reaction blue colour of copper sulphate changes to light green colour of iron sulphate.

This reaction is type of displacement reaction.

Hence,option C is correct answer.