Question

Most metals react with dilute mineral acids to give hydrogen gas. what is the characteristic test for hydrogen gas.​

Answer 1

Answer:

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Explanation:

Metals can produce hydrogen gas with hydrochloric acid only when the metal will be able to replace the hydrogen atom from the HCl. In order to replace the hydrogen atom from the HCl gas, the metals should be placed above the hydrogen atom in the reactivity series of metals.

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