(C) Deep sea divers use a mixture of $He$ and $O_2$ for respiration because $He$ is much less soluble in blood than $N_2$.This prevents the formation

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(C) Deep sea divers use a mixture of $He$ and $O_2$ for respiration because $He$ is much less soluble in blood than $N_2$.This prevents the formation of bubbles of $N_2$ in the blood when the diver ascends to the surface,a condition known as decompression sickness or 'bends'.Therefore,the Assertion is correct,but the Reason is incorrect because $He$ is actually sparingly soluble in blood.

Class 12 Chemistry Solutions Solubility

Medium

Assertion: $A$ mixture of $He$ and $O_2$ is used for respiration for deep sea divers.
Reason: $He$ is soluble in blood.

AIIMS 1998 All AIIMS

A
If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
B
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
C
If the Assertion is correct but Reason is incorrect.
D
If both the Assertion and Reason are incorrect.

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Assertion: $A$ mixture of $He$ and $O_2$ is used for respiration for deep sea divers.Reason: $He$ is soluble in blood.

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What is solubility? What is a saturated solution?

The $K_H$ values (in $k\text{bar}$) of argon $(I)$,carbon dioxide $(II)$,formaldehyde $(III)$,and methane $(IV)$ are $40.3$,$1.67$,$1.83 \times 10^{-5}$,and $0.413$ respectively at $298 \ K$. The increasing order of solubility of these gases in liquid is:

The solubility of a gas in a liquid is directly proportional to the partial pressure of the gas. This statement is known as ...

At $298 \ K$,how many millimoles of $CO_2$ gas will dissolve in $900 \ mL$ of water when $CO_2$ gas is passed through it? The $K_H$ value is $6.02 \times 10^{-4} \ bar$ and the partial pressure of $CO_2$ gas is $2 \times 10^{-8} \ bar$.

Why do gases always tend to be less soluble in liquids as the temperature is raised?

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Assertion: $A$ mixture of $He$ and $O_2$ is used for respiration for deep sea divers.
Reason: $He$ is soluble in blood.