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Deep sea divers used to respire in a mix...

Deep sea divers used to respire in a mixture of

A

Oxygen and argon

B

Oxygen and helium

C

Oxygen and nitrogen

D

Oxygen and hydrogen

Text Solution

Verified by Experts

The correct Answer is:
B
An oxygen-helium mixure 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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A2Z-P BLOCK ELEMENTS ( GROUP 15,16,17,18)-Section D - Chapter End Test
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