Removal of __________ exemplifies an adsorption unit operation.
A. Uranium from its ore
B. Water from petrol
C. Ammonia from coke oven gas
D. Mustard oil from mustard seed
Answer: Option B
This Question Belongs to Chemical Engineering >> Mass Transfer
The correct answer is: C. Ammonia from coke oven gas
Explanation:
Adsorption is a surface phenomenon where molecules (adsorbate) adhere to the surface of a solid material (adsorbent) without undergoing a chemical change.
Let’s analyze the options:
A. Uranium from its ore → This involves leaching, not adsorption.
B. Water from petrol → Typically done by decantation or drying, not adsorption.
C. Ammonia from coke oven gas ✅ → Adsorption process using solid adsorbents like activated carbon or zeolites is commonly used.
D. Mustard oil from mustard seed → This is extraction, not adsorption.
✅ Correct Answer: C. Ammonia from coke oven gas