Absorption accompanied with chemical reaction is exemplified by the absorption of___________________?
Correct answer: C. SO2 in alkaline solution
- A. Ammonia in water
- B. Benzol present in coke oven gas by wash oil
- C. SO2 in alkaline solution
- D. All A., B. and C.
Explanation
SO₂ reacts with alkaline absorbents, such as caustic or carbonate solutions, so its absorption is enhanced by chemical reaction. Benzol in wash oil is physical absorption, while ammonia in water is usually treated as dissolution for this classification.
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