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Chemistry

How can you obtain hydrogen from sodium hydroxide [not by electrolysis].

Hydrogen

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Answer

When powdered zinc reacts with sodium hydroxide it produces hydrogen.

Zn+2NaOH⟶Na2ZnO2sodium zincate+H2[g]\text{Zn} + 2\text{NaOH} \longrightarrow \underset{\text{sodium zincate}}{\text{Na}2\text{ZnO}2} + \text{H}_2 \text{[g]}

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