Ethanolamine is an absorbent used for the removal of _____________ from air/gas?
Correct answer: D. Both B. & C.
- A. HF
- B. SO2
- C. H2S
- D. Both B. & C.
Explanation
Ethanolamines chemically absorb acidic gases such as hydrogen sulphide and sulphur dioxide through reversible reactions. Thus both H2S and SO2 are intended answers.
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