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Question

A mixture of gases having different molecular weights is separated by which method?

A
Atmolysis
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B
Metathesis
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C
Ostwald and Walker method
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D
Reverse osomosis
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Solution

The correct option is B Atmolysis
A process for separating gases or vapors of different molecular weights by transmission through a porous substance is called atmolysis.

The exchange of bonds between two reacting chemical species is Metathesis method.

Ostwald and Walker's Dynamic Method (Gas Saturation Method): In this method, the relative lowering of vapor pressure can be calculated in an easy simple way Procedure.

A process by which a solvent passes through a porous membrane in the direction opposite to that for natural osmosis when subjected to a hydrostatic pressure greater than the osmotic pressure.

Hence option A is correct.

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