Question

The correct match between Item I and Item II is :

Item - I	Item - II
(A) Benzaldehyde	(P) Mobile phase
(B) Alumina	(Q) Adsorbent
(C) Acetonitrile	(R) Adsorbate

• (A) \(\to\) (Q); (B) \(\to\) (P); (C) \(\to\) (R)
• (A) \(\to\) (R); (B) \(\to\) (Q); (C) \(\to\) (P)
• (A) \(\to\) (Q); (B) \(\to\) (R); (C) \(\to\) (P)
• (A) \(\to\) (P); (B) \(\to\) (R); (C) \(\to\) (Q)

Hint:

In column chromatography the solid (alumina) is the adsorbent, the compound being separated is the adsorbate, and the liquid solvent that moves is the mobile phase.

Answer 1

The Correct Option is B

In adsorption chromatography:
Alumina (\(\mathrm{Al_2O_3}\)) is the solid stationary phase, hence the adsorbent: (B) \(\to\) (Q).
Benzaldehyde is the organic compound that gets adsorbed on alumina, hence the adsorbate: (A) \(\to\) (R).
Acetonitrile is the solvent (eluent) that moves through the column, hence the mobile phase: (C) \(\to\) (P).
Matching option: (A)-(R); (B)-(Q); (C)-(P).
Answer: (2) (A) \(\to\) (R); (B) \(\to\) (Q); (C) \(\to\) (P)