Multiple choice

In which of the following cases will the extent of corrosion be enhanced?

  1. If the metal is highly unreactive

  2. In the absence of carbon dioxide

  3. If impurities are present in the metal

  4. If the metal is coated with a layer of protective coating
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The corrosion will be enhanced: (a)  if impurities are present in the metal (b)  in the presence of carbon dioxide (c)  if the metal is highly reactive  

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