Which of the following Noble gas is used as anesthetic agent?

Xenon

The correct answer is option 1. Xenon.

Xenon, which is a noble gas, is used as an anesthetic agent due to its unique properties. Here's an explanation:

1. Inert Nature: Noble gases are known for their inertness, meaning they don't readily react with other substances. This property is crucial for anesthetic agents because it ensures that the gas doesn't undergo chemical reactions in the body, reducing the risk of unwanted side effects.

2. Anesthetic Properties: Xenon, in particular, exhibits anesthetic properties when administered in controlled concentrations. It acts as a general anesthetic, meaning it induces unconsciousness and prevents pain during medical procedures.

3. Safety: Xenon is considered relatively safe for medical use compared to some other anesthetic agents. It has minimal cardiovascular and respiratory depressant effects, making it suitable for patients with certain medical conditions or those at risk of complications from other anesthetics.

4. Rapid Onset and Offset: Xenon's anesthetic effects have a rapid onset and offset, allowing for precise control over the depth of anesthesia. This property is beneficial for medical procedures where quick recovery is desirable.

5. Neuroprotective Effects: Research suggests that xenon may have neuroprotective properties, meaning it could help protect the brain from injury or damage during certain medical procedures or conditions.

Overall, xenon's inertness, anesthetic properties, safety profile, and other unique characteristics make it a valuable option for use as an anesthetic agent in medical practice.