Which of the following acids is not used in the preparation of hydrogen from metals?

Nitric acid

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Hydrochloric acid

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Sulphuric acid

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Solution

The correct option is A
Nitric acid

Nitric acid, even in its dilute form is not used in the preparation of hydrogen from metals because nitric acid is a powerful oxidising agent. The oxygen formed due to its decomposition, oxidises the hydrogen to give water. Thus, defeating the purpose of reaction.

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Which of the following acids is not used in the preparation of hydrogen from metals?

The correct option is A Nitric acidNitric acid, even in its dilute form is not used in the preparation of hydrogen from metals because nitric acid is a powerful oxidising agent. The oxygen formed due to its decomposition, oxidises the hydrogen to give water. Thus, defeating the purpose of reaction.