| Copper sulphate (soln.) + Iron \[\to \] Iron sulphate (soln.) + Copper |
A) Chemical change
B) Physical change
C) Biochemical
D) Both (A) and (B)
Correct Answer: A
Solution :
When a piece of iron is dipped in copper sulphate solution, iron sulphate is formed. This is a chemical reaction in which iron replaces copper to form iron sulphate. \[Fe(s)+CuS{{O}_{4}}(aq)\to FeS{{O}_{4}}(aq)+Cu(s)\]
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