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NEET UG CHEMISTRY MCQ: P-BLOCK ELEMENTS
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Helium is added to oxygen used by deep sea drivers because
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Correct option: A
It is less soluble in blood than Nitrogen under high pressure
Option A (It is less soluble in blood than Nitrogen under high pressure) is correct because helium's lower solubility in blood prevents nitrogen narcosis, a dangerous condition that can occur at high pressures underwater.
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