S Block Elements Question 56
Question: Which of the following gas mixture is used by the divers inside the sea
[AFMC 2004]
Options:
A) $ O_2+He $
B) $ O_2+Xe $
C) $ O_2+Ar $
D) $ O_2+N_2 $
Show Answer
Answer:
Correct Answer: A
Solution:
Helium is not soluble in blood even under high pressure, a mixture of 80% helium and 20% oxygen is used instead of ordinary air by sea divers for respiration.
BETA
