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| 1. |
What is mean by corrosion |
| Answer» When some metals are exposed to moisture, acids etc., they tarnish due to the formations of respective metal oxide on their surface. This process is called “corrosion”.Example: (1) 4Ag + 2H2S + O2 → 2Ag2S + 2H2O(2) 2Cu + O2 → 2CuO | |