Q.

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R:
Assertion A: Helium is used to dilute oxygen in diving apparatus.
Reason R : Helium has high solubility in blood.
In the light of the above statements, choose the correct answer from the options given below.

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a

Both A and R are true and R is the correct explanation of A.

b

Both A and R are true and R is not the correct explanation of A.

c

A is false but R is true.

d

A is true but R is false.

answer is A.

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Detailed Solution

Helium is used as a diluent for oxygen in modern diving apparatus because of its very low solubility in blood.

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