Question

Which of the following is not true for dry corrosion?
1 point
(a) It takes place by direct chemical attack on metal
(b) It takes place uniformly
(c) It takes place on heterogeneous metal surfaces only
(d) It takes place in dry condition
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Answer 1

Answer:

(d) is the wrong answer

Explanation:

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Answer 2

Option (a)Corrosion takes place by direct chemical attack on metal.

Explanation:

• Metallic corrosion is an electrochemical process that occurs between a metal and its environment.
• It involves oxidation and reduction reactions.
• There are two general classifications of corrosion that cover most of the specific forms.
• It is caused by the direct chemical attack and electrochemical attack.
• Corrosion occurs when most of the atoms on the same metal surface get oxidized and start damaging the entire surface.

• Metals are easily oxidized as they tend to lose electrons to oxygen

• As soon as oxygen is reduced that it gains electrons, it forms an oxide with the metal.