When a zinc strip is placed in copper sulphate solution, which statement is correct?
Answer and explanation
Correct answer: Zinc displaces copper from copper sulphate solution.
Zinc is above copper in the reactivity series, so it displaces copper from copper sulphate solution. The reaction is \(\mathrm{Zn + CuSO_4 \rightarrow ZnSO_4 + Cu}\). The blue colour of the solution fades and copper may deposit on the zinc strip. Option B is incorrect because copper is less reactive than zinc.
Frequently asked questions
What is the correct answer to this question?
Zinc displaces copper from copper sulphate solution.
Why is this the correct answer?
Zinc is above copper in the reactivity series, so it displaces copper from copper sulphate solution. The reaction is \(\mathrm{Zn + CuSO_4 \rightarrow ZnSO_4 + Cu}\). The blue colour of the solution fades and copper may deposit on the zinc strip. Option B is incorrect because copper is less reactive than zinc.
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.
