Chemistry
Grade-6
Easy

Question

Reaction between oxygen and hydrogen produces a lot of heat energy. This is exploited in which of the following uses of oxygen?

hintHint:

Hydrogen is a highly reactive fuel. hydrogen molecules violently react with oxygen when the existing molecular bonds break and new bonds are formed between oxygen and hydrogen atoms.

The correct answer is:


    The reaction between oxygen and hydrogen produces a lot of heat energy. This is exploited in the welding of iron.

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