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Question

The substance which can be used as adsorbent in column chromatography is:

A
Na2O
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B
Na2SO4
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C
Al2O3
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D
NaCl
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Solution

The correct option is C Al2O3
The most commonly used adsorbent in column chromatography is Al2O3 and silica gel because these have high surface area and porous in nature such that they absorb substances onto the surface by inter-molecular forces.

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