KOH solution used in Orsat apparatus absorbs____________________?
Correct answer: C. Both A. & B.
- A. CO2
- B. SO2
- C. Both A. & B.
- D. Neither A. nor B.
Explanation
KOH solution removes acidic gases by absorption and reaction, especially CO₂; it can also absorb SO₂. Therefore, both listed gases are absorbed, although standard Orsat analysis mainly uses KOH for CO₂ measurement.
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