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प्रश्न
A common metal which is highly resistant to corrosion is ______.
विकल्प
iron
copper
aluminium
magnesium
MCQ
रिक्त स्थान भरें
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उत्तर
A common metal which is highly resistant to corrosion is aluminium.
Explanation:
Aluminium is highly resistant to corrosion because it reacts rapidly with oxygen in the air to form a thin, tough, protective layer of aluminium oxide on its surface. This invisible oxide layer adheres tightly to the metal and prevents further oxygen or moisture from reacting with the fresh aluminium beneath.
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