Question

22. The gas liberated when an acid reacts with a metal is
A) Hydrogen
B) Sodium
C) CO₂
DIO₂​

Answer 1

Answer:

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The gas liberated when an acid reacts with a metal is

A) Hydrogen

B) Sodium

C) CO₂

D) O₂

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Answer 2

Answer:

A) Hydrogen

Explanation:

Hydrogen gas is liberated when an acid reacts with a metal.

For example, when zinc metal reacts with dil. hydrogen is evolved and salt zinc chloride is formed as: It can be tested by bringing a burning candle near the gas.