Which acid among the following is not used to produce hydrogen gas even in its dilute form on reacting with metals:-

Sulphuric acid

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Hydrochloric acid

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Nitric acid

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Phosphoric acid

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Solution

The correct option is C
Nitric acid

Nitric acid ( $H N O_{3}$ ) is a strong oxidising agent so it oxidises the other element or compound and reduces itself and when it reacts with metals it won't produce hydrogen gas instead it oxidises hydrogen to form water. The metals that produce hydrogen with extremely diluted nitric acids are magnesium (Mg) and manganese (Mn).

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Similar questions

Q. Metals generally react with dilute acids to produce hydrogen gas. Which one of the following metals does not react with dilute hydrochloric acid?

Dilute acids like hydrochloric acid (HCl), sulphuric acid $H_{2} S O_{4}$ react with certain active metals to evolve hydrogen gas and form their metallic salts.

(a) Name one metal which reacts with dilute hydrochloric acid to produce hydrogen gas.

(b)Name one metal which does not react with dilute hydrochloric acid.

Q. Question 7
Metals generally react with dilute acids to produce hydrogen gas. Which one of the following metals does not react with dilute hydrochloric acid?

(a) magnesium
(b) aluminium
(c) iron
(d) copper

Q. Question 7
Metals generally react with dilute acids to produce hydrogen gas. Which one of the following metals does not react with dilute hydrochloric acid?

(a) magnesium
(b) aluminium
(c) iron
(d) copper

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