Which pair of products is formed when an iron nail is placed in copper sulphate solution?
Answer and explanation
Correct answer: Iron(II) sulphate and copper
Iron is more reactive than copper, so it displaces copper from copper sulphate solution: \(\mathrm{Fe + CuSO_4 \rightarrow FeSO_4 + Cu}\). Therefore, iron(II) sulphate and copper are the products. Iron oxide and hydrogen are not formed because oxygen and an acid are not involved in this reaction.
Frequently asked questions
What is the correct answer to this question?
Iron(II) sulphate and copper
Why is this the correct answer?
Iron is more reactive than copper, so it displaces copper from copper sulphate solution: \(\mathrm{Fe + CuSO_4 \rightarrow FeSO_4 + Cu}\). Therefore, iron(II) sulphate and copper are the products. Iron oxide and hydrogen are not formed because oxygen and an acid are not involved in this reaction.
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.
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