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प्रश्न
State under what conditions corrosion is faster ?
उत्तर
Conditions for increase of corrosion are:
1. Presence of oxygen and moisture.
2. Metals which are placed higher in activity series corrode more easily
3. Dissolved salts in water act as electrolyte and enhance the rate of corrosion.
4. The presence of pollutants like `NO_2` and `CO_2` increases rusting.
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