Q.

A very common adsorbent used in column chromatography is

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a

Powdered charcoal

b

Alumina

c

Chalk

d

Sodium carbonate

answer is B.

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Detailed Solution

Stationary phase- Adsorbent → E.g: Alumina, SilicaMobile phase [moving phase] → solvent (or) mixture of solvents →eluent              The (adsorbate) components of the mixture move up along with eluent (solvent) to different extents depending upon the polarity of constituents (attractions between the constituents and stationary phase).
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