Oleum is prepared by?
A. Absorbing SO3 into water
B. Absorbing SO3 into sulfuric acid
C. Absorbing SO2 into water
D. Absorbing SO2 into sulfuric acid
Answer:B
Oleum is prepared by?
A. Absorbing SO3 into water B. Absorbing SO3 into sulfuric acid C. Absorbing SO2 into water D. Absorbing SO2 into sulfuric acid