A) \[{{O}_{2}}+He\]
B) \[{{O}_{2}}+Xe\]
C) \[{{O}_{2}}+Ar\]
D) \[{{O}_{2}}+{{N}_{2}}\]
Correct Answer: A
Solution :
A mixture of 80% helium and 20% oxygen is used by sea divers for respiration as helium is not soluble in blood even under high pressure below the waters, unlike nitrogen.You need to login to perform this action.
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