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Option 2 : N2O
- Nitrous oxide (N2O) is colorless at room temperature and odorless gas.
- It is commonly used for sedation and pain relief.
- It is also used as a food aerosol in the preparation of whipping cream.
|
CO2 |
Carbon dioxide |
|
N2O |
Nitrous Oxide / Laughing gas |
|
H2O |
Water |
|
O3 |
Ozone |
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