Which is the most efficient absorbant for SO 3 out of the following ? – McqOptions

MCQOPTIONS

1.	Which is the most efficient absorbant for SO 3 out of the following ?
A.	20% oleum
B.	65% oleum
C.	78%H 2 SO 4
D.	98%H 2 SO 4
Answer» E.

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