Question : Which of the following is used as anesthetics?
Option 1: N2
Option 2: N2O
Option 3: CH4
Option 4: CO2
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Correct Answer: N 2 O
Solution : The correct option is N2O.
Nitrous oxide (N2O), popularly known as "laughing gas," is used in some medical and dental procedures as a light anaesthetic. It is given to patients having minor operations or procedures to produce conscious sedation and reduce pain and anxiety.
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