A gas is evolved when ethanol reacts with sodium. The gas evolved is :

hydrogen

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carbon dioxide

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oxyen

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none of the above

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Solution

The correct option is A hydrogen
The balanced equation for the chemical reaction involved can be written as:
$2 C H_{3} C H_{2} O H + 2 N a \to 2 C H_{3} C H_{2} O N a + H_{2}$
The hydrogen atom from the hydroxyl group is replaced by sodium, forming sodium ethoxide and the gas evolved is hydrogen.

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