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Preparation of Hydrogen

c A metal whi...

Question

(c) A metal which produces hydrogen on reacting with alkali as well as with acid.

A

Zinc

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B

Iron

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C

Magnesium

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D

Copper

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Solution

The correct option is A Zinc
Correct Answer: (c) Zinc

Metals that are amphoteric in nature react with both alkali as well as acid to produce hydrogen.

Zinc is amphoteric in nature so it can react with both alkali as well as acid to produce a metal salt and hydrogen gas.

With base:

$Z n + 2 N a O H \to N a_{2} Z n O_{2} + H_{2}$

With acid:

$Z n + 2 H C l \to Z n C l_{2} + H_{2}$

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Preparation of Hydrogen

Standard XII Chemistry

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