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NEET UG CHEMISTRY MCQ: P-BLOCK ELEMENTS
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Helium –oxygen mixture is used by deep by sea divers in preference to nitrogen oxygen mixture because
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Correct option: A
Helium is much less soluble in blood than nitrogen
Option A (Helium is much less soluble in blood than nitrogen) is correct because the lower solubility of helium in blood at high pressures prevents nitrogen narcosis, a dangerous condition for deep-sea divers.
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