Why does no reaction occur when a copper strip is placed in zinc sulphate solution?
Answer and explanation
Correct answer: Copper is less reactive than zinc
In a displacement reaction, only a more reactive metal displaces a less reactive metal from its salt solution. Zinc is above copper in the reactivity series, so copper cannot displace zinc from zinc sulphate solution. Hence, no reaction occurs. Option A is incorrect because copper is less reactive than zinc. Exam tip: Compare the metals in the reactivity series to predict a displacement reaction.
Frequently asked questions
What is the correct answer to this question?
Copper is less reactive than zinc
Why is this the correct answer?
In a displacement reaction, only a more reactive metal displaces a less reactive metal from its salt solution. Zinc is above copper in the reactivity series, so copper cannot displace zinc from zinc sulphate solution. Hence, no reaction occurs. Option A is incorrect because copper is less reactive than zinc. Exam tip: Compare the metals in the reactivity series to predict a displacement 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.
