Question:
Which of the following metals is least reactive?
Which of the following metals is least reactive?
Updated On: Apr 7, 2025
- Mg
- Au
- K
- Fe
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The Correct Option is B
Solution and Explanation
Gold (Au) is one of the least reactive metals. It does not corrode easily, does not react with air or water under normal conditions, and is found in nature in its elemental form. In contrast:
Potassium (K) is extremely reactive, especially with water.
Magnesium (Mg) is also reactive, though less so than potassium.
Iron (Fe) reacts with moisture and oxygen, forming rust.
The correct option is (B): Au
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