Assertion :Rate of diffusion of a gas is inversely proportional to the square rate of its density Reason: Hydrogen is the lightest gas known. so it diffuses most readily

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
The rate of diffusion of a gas is inversely proportion to the square root of its density. The lighter gas diffuse faster as compared to heavier gas. So, $H_{2}$ diffuse readily.

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Similar questions

Q. Assertion: The compressibility factor for

H_{2}

and

H e

(1 + \frac{P b}{R T})

Reason: The compressibility factor for

H_{2}

and

H e

can be derived from Van der Waal's equation.

Assertion (A) Order and molecularity are same.

Reason (R) Order is determined experimentally and molecularity is the sum of the stoichimetric coeffcient of rate determining elementary step.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

ASSERTION: n-Pentane and n-Hexane belong to a homologous series.

REASON: n-Pentane and n-Hexane belong to the same class of hydrocarbons and they differ by a - $C H_{2}$ - group.

Q. Assertion
If BOD level of water in reservoir is less than 5 ppm it is not polluted.

Reason
High biological oxygen demand means low activity of bacteria in water.

Assertion (A) Rate constant determined from Arrhenius equation are fairly accurate for simple as well as complex molecules.

Reason (R) Reactant molecules undergo chemical change irrespective of their orientation during collision.

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Assertion :Rate of diffusion of a gas is inversely proportional to the square rate of its density Reason: Hydrogen is the lightest gas known. so it diffuses most readily

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for AssertionThe rate of diffusion of a gas is inversely proportion to the square root of its density. The lighter gas diffuse faster as compared to heavier gas. So, H2 diffuse readily.

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
The rate of diffusion of a gas is inversely proportion to the square root of its density. The lighter gas diffuse faster as compared to heavier gas. So, $H_{2}$ diffuse readily.