Question

Which of the following is the life-saving mixture for an asthma patient?

• A. \( \text{Mixture of helium and oxygen} \)
• B. \( \text{Mixture of neon and oxygen} \)
• C. \( \text{Mixture of xenon and nitrogen} \)
• D. \( \text{Mixture of argon and oxygen} \)

Hint:

Heliox (a mixture of helium and oxygen) reduces airway resistance due to the low density of helium, making it beneficial for asthma and other respiratory conditions.

Answer 1

The Correct Option is A

To address the use of gas mixtures for medical purposes, specifically for asthma patients: 1. Role of Helium in Heliox: - Helium is an inert gas with a very low density compared to air. This property helps reduce airway resistance, allowing easier passage of oxygen through constricted or obstructed airways in asthma patients. 2. Oxygen in the Mixture: - Oxygen is vital for maintaining adequate oxygenation in patients. Combining it with helium ensures that the patient receives the necessary oxygen while benefiting from reduced airway resistance. 3. Comparison with Other Gas Mixtures: - Mixtures like neon and oxygen, xenon and nitrogen, or argon and oxygen do not offer the same advantages as Heliox. These gases are either denser or lack the specific properties needed to reduce airway resistance effectively. Thus, a mixture of helium and oxygen (Heliox) is the most effective for this purpose. Final Answer: \[ \boxed{\text{Mixture of helium and oxygen}} \]