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The gas given off when ethanol reacts with sodium is


Question

The gas given off when ethanol reacts with sodium is

Options

A) Carbon(IV)oxide

B) Hydrogen

C) Methane

D) Oxygen


The correct answer is B.

Explanation:

If a small piece of sodium is dropped into some ethanol, it reacts steadily to give off bubbles of hydrogen gas and leaves a colourless solution of sodium ethoxide, CH\(_3\)CH\(_2\)ONa. Sodium ethoxide is known as an alkoxide.

If the solution is evaporated carefully to dryness, the sodium ethoxide is left as a white solid.

2CH\(_3\)CH\(_2\)OH + 2Na \(\rightarrow\) 2CH\(_3\)CH\(_2\)ONa + H\(_2\)


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  • If a small piece of sodium is dropped into some ethanol, it reacts steadily to give off bubbles of hydrogen gas and leaves a colourless solution of sodium ethoxide, CH\(_3\)CH\(_2\)ONa. Sodium ethoxide is known as an alkoxide.

    If the solution is evaporated carefully to dryness, the sodium ethoxide is left as a white solid.

    2CH\(_3\)CH\(_2\)OH + 2Na \(\rightarrow\) 2CH\(_3\)CH\(_2\)ONa + H\(_2\)

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