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A bolt of lightning heats the surrounding air to ~30,000 K — five times hotter than the Sun's surface.
Did you know?
A bolt of lightning heats the surrounding air to ~30,000 K — five times hotter than the Sun's surface.
Assertion A: Helium is used to dilute oxygen in diving apparatus.Reason R: Helium has high solubility in OChoose the correct answer from the options given below:
Both A and R are true and R is the 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.
To solve this problem, we need to evaluate both the assertion and the reason separately.Assertion A: Helium is used to dilute oxygen in diving apparatus.• This statement is true. Helium is indeed used in diving apparatus to dilute oxygen.• The reason for using helium is that it is less soluble in blood compared to nitrogen, which reduces the risk of decompression sickness (the bends) for divers.Reason R: Helium has high solubility in O• This statement is false. Helium does not have high solubility in oxygen.• In fact, helium is chosen because it has low solubility in blood, not because of its solubility in oxygen.Based on this analysis:• Assertion A is true.• Reason R is false.Therefore, the correct answer is Option 3: A is true but R is false.
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