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Uses of Hydrogen

Which of the ...

Question

Which of the following is used in metallurgical process to prevent the oxidation of metals?

A

Inert gases

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B

Water gas

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C

Coal gas

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D

Both (A) and (C)

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Solution

The correct option is D Both (A) and (C)
Inert gases are used as they do not react with metals while coal gas is used because it contains carbon monoxide which is a reducing agent and thus prevents oxidation of metal.

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