Which substance is deposited on the surface of zinc when it is placed in copper sulphate solution?
Answer and explanation
Correct answer: Copper
Zinc is more reactive than copper, so it displaces copper from copper sulphate solution:
\(\mathrm{Zn + CuSO_4 \rightarrow ZnSO_4 + Cu}\)
The released copper is deposited as a reddish-brown solid on the zinc surface. Zinc sulphate is formed in the solution, so it is not the deposited solid.
Frequently asked questions
What is the correct answer to this question?
Copper
Why is this the correct answer?
Zinc is more reactive than copper, so it displaces copper from copper sulphate solution:
\(\mathrm{Zn + CuSO_4 \rightarrow ZnSO_4 + Cu}\)
The released copper is deposited as a reddish-brown solid on the zinc surface. Zinc sulphate is formed in the solution, so it is not the deposited solid.
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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