Question

Which of the following substance used as adsorbate?

• A. Alumina.
• B. Acetonitrile.
• C. Benzaldehyde.
• D. All Of These

Answer 1

The correct option is C

Benzaldehyde.

Explanation of correct option:

C) Benzaldehyde

• Benzaldehyde is an adsorbate.
• “Adsorbate is a substance that is adsorbed.”
• Benzaldehyde gets adsorbed onto a polymeric resin.
• Hence, benzaldehyde is an adsorbate.

Explanation for incorrect options:

A) Alumina

• Alumina is not an adsorbate. Alumina is an active adsorbent because it is a very porous material when activated.
• It is known as a desiccant that has the ability to absorb water and keep things dry by absorbing water. Therefore, alumina is an adsorbent.

B) Acetonitrile

• Acetonitrile is not an adsorbate. Acrylonitrile is used as a mobile phase in high-performance liquid chromatography (HPLC).
• It dissolves both protic and non-polar solvents.

Hence, option (C) is correct. Benzaldehyde is an adsorbate.