Question

what are the two conditions which promotes corrosion? ​

Answer 1

Answer:

1. Pollutants like acid rain promote corrosion to a huge extent. Also, the presence of other pollutants like chlorides, carbon dioxide etc. form a film on the metal by dissolving in atmospheric moisture.

2. Oxygen - Corrosion occurs in an oxygen-deficient environment and also in one where oxygen is present in excess, with the extent of corrosion being more in the latter situation than the former.

Explanation:

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