Q.

Which gas is produced when sodium hydroxide reacts with aluminum metal? 

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a

Carbon Dioxide

b

Hydrogen gas

c

Carbon Monoxide

d

Sulfur Dioxide

answer is C.

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Detailed Solution

When alkali (base) reacts with metal, it produces salt and hydrogen gas. Sodium aluminate and hydrogen gas are formed when sodium hydroxide reacts with the aluminum metal.

Sodium Hydroxide + Aluminium → Sodium aluminate + Hydrogen

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