What is laughing gas?

1 Carbon dioxide

2 Sulphur dioxide

3 Hydrogen peroxide

4 Nitrous oxide

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What is laughing gas? 1 Carbon dioxide 2 Sulphur dioxide 3 Hydrogen peroxide 4 Nitrous o..

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(4) Nitrous oxide

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What is laughing gas? 1 Carbon dioxide 2 Sulphur dioxide 3 Hydrogen peroxide 4 Nitrous o..

Answer / sowjanya reddy

Nitrous oxide

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What is laughing gas? 1 Carbon dioxide 2 Sulphur dioxide 3 Hydrogen peroxide 4 Nitrous o..

Answer / sonam dutta

4.Nitrous oxide

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