In the electrolyse of water, which of the following gases are released?

Hydrogen

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Carbon dioxide

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Nitrogen

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Oxygen

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Solution

The correct option is D Oxygen
Water electrolysis is the decomposition of water into oxygen gas and hydrogen gas by passing electrical current through it. These gases are released in the form of bubbles. Hydrogen is released near the electrode connected to the negative terminal of the battery and oxygen is released near the electrode connected to the positive terminal of the battery.

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