is also known as laughing gas.

Ammonia

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Calcium oxide

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Sodium sulphate

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Nitrous oxide

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Solution

The correct option is D Nitrous oxide
Nitrous Oxide or laughing gas is also called laughing gas because it can create a feeling which makes us laugh easily. It is also used as a sedative in dental and medical care. It causes a reduction in the sensation of pain, which can be helpful if you are in need of serious dentistry.

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X is a gas popularly called as laughing gas. It is also used as an anesthesia. X is

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