Question:medium
From the following select the one which is not an example of corrosion.
From the following select the one which is not an example of corrosion.
Updated On: May 1, 2026
- Rusting of iron object
- Production of hydrogen by electrolysis of water
- Tarnishing of silver
- Development of green coating on copper and bronze ornaments
Show Solution
The Correct Option is B
Solution and Explanation
Corrosion is defined as the degradation of a material resulting from a chemical interaction with its surroundings.
- Iron rusting, a form of oxidation, exemplifies corrosion.
- Silver tarnishing, characterized by silver sulfide formation, is a type of corrosion.
- The green patina on copper and bronze, a result of copper carbonate and other compound formation, constitutes corrosion.
- Electrolysis of water to produce hydrogen is an electrochemical process that breaks down water into hydrogen and oxygen, and is not corrosion.
Consequently, the production of hydrogen through water electrolysis is not an instance of corrosion.
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