Question

Which of the following metals does NOT displace zinc from its solution?

• A. Fe
• B. K
• C. Na
• D. Al

Hint:

In displacement reactions, remember that more reactive metals (like Na, K, and Al) can displace less reactive metals (like zinc).

Answer 1

The Correct Option is A

Step 1: Understanding displacement reactions.
In a displacement reaction, a more reactive metal displaces a less reactive metal from its solution. To displace zinc, the metal must be more reactive than zinc.
Step 2: Analyzing the options.
(A) Fe: Correct — Iron (Fe) is less reactive than zinc, so it cannot displace zinc from its solution.
(B) K: Potassium (K) is more reactive than zinc and can displace zinc from its solution.
(C) Na: Sodium (Na) is more reactive than zinc and can displace zinc from its solution.
(D) Al: Aluminum (Al) is more reactive than zinc and can displace zinc from its solution.
Step 3: Conclusion.
The correct answer is (A) Fe, as iron is less reactive than zinc and cannot displace it.