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Gas-solid chromatography is based on which of the following processes?

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Gas-solid chromatography is based on which of the following processes?

(a) Partition of the analyte between a gaseous mobile phase and a stationary liquid phase

(b) Adsorption of gaseous substances on solid surface

(c) Ion exchange

(d) Large molecules cannot penetrate through the gel

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I'm obligated to ask this question of Gas Solid Chromatography in division Chromatography of Analytical Instrumentation

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Best answer
The correct choice is (b) Adsorption of gaseous substances on solid surface

The best explanation: Gas-solid chromatography is based on the adsorption of gaseous substances on a solid surface. It is useful for the separation of rare gases.

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