Metal A displaces metal B, and metal B displaces metal C. Which metal is the least reactive?
Answer and explanation
Correct answer: Metal C
A metal can displace another metal from its compound only when it is more reactive. Since A displaces B, the order begins A > B. Since B displaces C, the order continues B > C. Combining both statements gives A > B > C in reactivity. Therefore C is the least reactive metal. Option D contradicts the displacement rule, while A and B are more reactive than C.
Frequently asked questions
What is the correct answer to this question?
Metal C
Why is this the correct answer?
A metal can displace another metal from its compound only when it is more reactive. Since A displaces B, the order begins A > B. Since B displaces C, the order continues B > C. Combining both statements gives A > B > C in reactivity. Therefore C is the least reactive metal. Option D contradicts the displacement rule, while A and B are more reactive than C.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Metals and Non-metals. Topic: Reactivity series.
