Home › MCQs › EEJ MAIN Chemistry › Question #7169
Back to Questions
EEJ MAIN Chemistry QUESTION #7169
Question 1
Match the following chemical items correctly: (A) Benzaldehyde, (B) Alumina, (C) Acetonitrile with their roles (P) Mobile phase, (Q) Adsorbent, (R) Adsorbate.
  • (A)-(Q); (B)-(P); (C)-(R)
  • (A)-(R); (B)-(Q); (C)-(P)✔️
  • (A)-(Q); (B)-(R); (C)-(P)
  • (A)-(P); (B)-(R); (C)-(Q)
Correct Answer Explanation
In chromatography and surface processes:
  • Benzaldehyde (Adsorbate): The substance that gets adsorbed.
  • Alumina (Adsorbent): The solid surface that provides sites for adsorption.
  • Acetonitrile (Mobile phase): The solvent/liquid that moves over the adsorbent.