Q. Helium –oxygen mixture is used by deep by sea divers in preference to nitrogen oxygen mixture because
A) Helium is much less soluble in blood than nitrogen
B) Nitrogen is much less soluble in blood than helium
C) Due to high pressure deep under the sea nitrogen and oxygen react to give poisonous nitric oxide
D) Nitrogen is highly soluble in water
Explanation
(a)
In blood He is much less soluble than nitrogen, hence He⟶O_{2} mixture is used by deep sea divers in preference to N_{2} ⟶O_{2} mixture.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.