Metal A is less reactive than metal B. What will happen if metal A is placed in an aqueous solution of a salt of metal B?
Answer and explanation
Correct answer: No displacement reaction will occur.
The reactivity series predicts whether one metal can displace another from its salt solution. A displacement reaction occurs only when the free metal is more reactive than the metal ion in the compound. Since A is less reactive than B, A cannot remove B from its aqueous salt; under the stated conditions, no displacement reaction occurs. Option B would be possible only if A were more reactive than B, so option A is correct.
Frequently asked questions
What is the correct answer to this question?
No displacement reaction will occur.
Why is this the correct answer?
The reactivity series predicts whether one metal can displace another from its salt solution. A displacement reaction occurs only when the free metal is more reactive than the metal ion in the compound. Since A is less reactive than B, A cannot remove B from its aqueous salt; under the stated conditions, no displacement reaction occurs. Option B would be possible only if A were more reactive than B, so option A is correct.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Metals and Non-metals. Topic: Reactivity series.
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