1.

The most efficient agent for the absorption of \[S{{O}_{3}}\] is [KCET 1998]

A. \[98%{{H}_{2}}S{{O}_{4}}\]
B. \[80%{{H}_{2}}S{{O}_{4}}\]
C. \[20%\]oleum
D. \[90%{{H}_{2}}S{{O}_{4}}\]
Answer» B. \[80%{{H}_{2}}S{{O}_{4}}\]


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