A) \[80%\ {{H}_{2}}S{{O}_{4}}\]
B) \[98%\ {{H}_{2}}S{{O}_{4}}\]
C) \[50%\ {{H}_{2}}S{{O}_{4}}\]
D) \[20%\ {{H}_{2}}{{S}_{2}}{{O}_{7}}\]
Correct Answer: B
Solution :
98% \[{{H}_{2}}S{{O}_{4}}\] is used for absorbing dense fog of acid which is formed by dissolving \[S{{O}_{3}}\]in water. Hence 98% \[{{H}_{2}}S{{O}_{4}}\]is the most efficient agent for the absorption of\[S{{O}_{3}}\].
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