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Displacement Reaction

Give the name...

Question

Give the name of the gas that evolved when sodium hydroxide reacts with zinc metal. Write the equation also.

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Solution

Zinc will react with sodium hydroxide to form sodium zincate and hydrogen gas will evolve. The reaction is as given below:

$2 N a O H + Z n ⟶ 2 N a Z n O_{2} + H_{2} ↑$

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