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 O₂.

In the light of the above statements, choose the correct answer from the options given below:

Option 1 - A is false but R is true.

Option 2 - Both A and R are true and R is the correct explanation of A.

Option 3 - Both A and R are true and R is NOT the correct explanation of A.

Option 4 - A is true but R is false.

3 Views|Posted 5 months ago

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Vishal Baghel | Contributor-Level 10

5 months ago

Correct Option - 4

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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Chemistry Ncert Solutions Class 11th 2023

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