Metals above hydrogen in activity series :

react with base to liberate hydrogen ions

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react with acids to liberate hydrogen gas

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react with water at ordinary temperature

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none of the above

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Solution

The correct option is C react with acids to liberate hydrogen gas
The activity series is a listing of the metals in decreasing order of their reactivity with hydrogen ion sources such as water and acids. In the reaction with hydrogen ion source the metal is oxidized to a metal ion and the hydrogen is reduced to hydrogen gas. They are also good reducing agents and poor oxidizing agents.

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Similar questions

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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