In the diving apparatus, helium is used along with oxygen, because it is (A) Easily available (B) Not soluble in blood at high pressure (C) Lighter than nitrogen (D) Completely miscible with oxygen

In the diving apparatus, helium is used along with oxygen, because it is (A) Easily available
(B) Not soluble in blood at high pressure
(C) Lighter than nitrogen
(D) Completely miscible with oxygen
by

1 Answer

Answer :

(B) Not soluble in blood at high pressure
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Related questions

Helium is added to the oxygen supply of deep sea divers because it is (1) less poisonous than nitrogen (2) Lighter than nitrogen (3) Readily miscible with oxygen (4) less soluble in blood than nitrogen at high pressure

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Last Answer : less soluble in blood than nitrogen at high pressure

In preference to nitrogen -oxygen mixture (present in air), a helium -oxygen mixture is used by divers in deep sea because helium (a) is less toxic than nitrogen (b) can readily mix with oxygen than nitrogen (c) is lighter than nitrogen (d) is less soluble in blood than nitrogen at high pressure under the sea

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Last Answer : Ans:(d)

(4) less soluble in blood than nitrogen at high pressure Explanation: Deep-sea divers have their oxygen supply mixed with helium in order to avoid the toxic nature of oxygen under extreme pressures. The Helium atom is much smaller than the Nitrogen molecule, has a smaller electron cloud and is less polarizable. It, therefore is less soluble in blood than nitrogen and prevents the formation of nitrogen bubbles in blood which blocks blood flow as the diver comes to the surface of the sea from underwater.

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Last Answer : nitrogen

Why is helium used in diving apparatus ?

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Helium - oxygen mixture is used by deep sea divers in preference to nitrogen-oxygen mixture, because

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