MCQ
Deep sea divers used to respirate is a mixture of
- AOxygen and argon
- ✓Oxygen and helium
- COxygen and nitrogen
- DOxygen and hydrogen
✓
Answer
Correct option: B.
Oxygen and helium
b
(b) An oxygen-helium mixture is used artificial respiration in deep sea diving instead of air because nitrogen present in air dissolves in blood under high pressure when sea diver goes into deep sea. When he comes to the surface, nitrogen bubbles out of the blood due to decrease in pressure, causing pains. This disease is called “bends”.
(b) An oxygen-helium mixture is used artificial respiration in deep sea diving instead of air because nitrogen present in air dissolves in blood under high pressure when sea diver goes into deep sea. When he comes to the surface, nitrogen bubbles out of the blood due to decrease in pressure, causing pains. This disease is called “bends”.
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