Question

(ii) Which of the following statements is not true?
(a) Corrosion is a chemical change.
(b) Corrosion of iron is called rusting.
(c) Corrosion is helped by stains on metallic surface.
(d) Corrosion can take place in vacuum.

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Answer 1

Answer:

option d) Corrosion can take place in vacuum.

Answer 2

The statement which is not true about corrosion is that corrosion can take place in a vacuum (option d).

• Corrosion is a chemical process that occurs when a highly reactive metal surface or other substance is exposed to air oxygen.
• Because it involves the destruction and creation of chemical bonds, it is referred to as irreversible chemical change.
• The rusting or corrosion of iron metal surfaces is known as corrosion.
• Due to the existence of stains on certain materials, metals' reactivity increases, and thus corrosion may increase when they come into contact with oxygen.
• Corrosion, on the other hand, does not occur in a vacuum since it is a chemical reaction involving the interaction of oxygen molecules.
• Because the vacuum is an oxygen-free medium, it is a false statement of corrosion.