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Q.

Which gas is produced during the reaction of a base with metals?


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a

Hydrogen

b

Carbon dioxide

c

Oxygen

d

Nitrogen 

answer is A.

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Detailed Solution

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Hydrogen gas is produced during the reaction of a base with metals.
The creation of salt and the release of hydrogen gas occur when a base reacts with a metal.
With the release of hydrogen gas, metals like zinc react with bases like sodium hydroxide to create sodium zincate. Its reaction is given as
Zn+2NaOH → Na2ZnO2+H2
 
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