A metal which reacts with very dilute nitric acid to give hydrogen gas is

ZInc

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Iron

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Aluminium

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Magnesium

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Solution

The correct option is D
Magnesium
Nitric acid $(H N O_{3})$ is a strong oxidising agent. It oxidises the hydrogen produced on the reaction of a metal with nitric acid to water and itself gets reduced to any of the nitrogen oxides $(N_{2} O, N O, N O_{2})$ . However, magnesium and manganese are the only two metals that react with very dilute $H N O_{3}$ to evolve hydrogen gas.

Hence, the correct answer is option (d).

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Similar questions

Q. Metals like copper fail to evolve hydrogen gas on reacting with dilute nitric acid.

(a) Explain why metals usually do not liberate hydrogen gas with dilute nitric acid.
(b) Name two metals which can, however, liberate hydrogen gas from very dilute nitric acid.

(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.

Which metal(s) out of the following reacts with very dilute nitric acid to produce nitric acid?

Correct the following statements :

(a) Hydrogen is used as a fuel for rocket propulsion.

(b) All metals react with acids to give hydrogen.

(d) Very dilute nitric acid reacts with zinc to produce hydrogen.

(e) $C o n c . H_{2} S O_{4}$ reacts with zinc to liberate hydrogen.

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