When copper sulphate solution reacts with iron metal,

Solution

A displacement reaction is a type of reaction in which part of one reactant is replaced by another reactant. • Single displacement reaction: These are the reactions in which one reactant replaces part of the other. • For example: Fe + CuSO4 → FeSO4 + Cu. • Double displacement reaction: These are the reactions in which the cations and anions in the reactants switch partners to form products. • For example: AgNO3 + NaCl → AgCl + NaNO3