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 . In the light of the above statements, choose the correct answer from the options given below
Both A and R are true and R correct explanation of A
Both A and R are true and R is NOT the correct explanation of A
A is true but R is false
A is false but R is true
Helium is used as a diluent for oxygen in deep-sea diving apparatus because it has very low solubility in blood, which helps prevent decompression sickness (the bends). The reason given, that helium has high solubility in , is false. Therefore, Assertion A is true, but Reason R is false.
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