Why does copper deposit on the surface of an iron nail placed in copper sulphate solution?
Answer and explanation
Correct answer: Iron displaces copper from copper sulphate solution
Iron is more reactive than copper in the reactivity series. Therefore, iron displaces copper from copper sulphate solution. The liberated copper forms a reddish-brown deposit on the nail surface. The reaction is \(\mathrm{Fe + CuSO_4 \rightarrow FeSO_4 + Cu}\). Option B is incorrect because the less reactive metal, copper, cannot displace iron from its compound.
Frequently asked questions
What is the correct answer to this question?
Iron displaces copper from copper sulphate solution
Why is this the correct answer?
Iron is more reactive than copper in the reactivity series. Therefore, iron displaces copper from copper sulphate solution. The liberated copper forms a reddish-brown deposit on the nail surface. The reaction is \(\mathrm{Fe + CuSO_4 \rightarrow FeSO_4 + Cu}\). Option B is incorrect because the less reactive metal, copper, cannot displace iron from its compound.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
