What is the chemical formula of oleum?

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Question

(B) Oleum,also known as fuming sulfuric acid,is a solution of sulfur trioxide $(SO_{3})$ in sulfuric acid $(H_{2}SO_{4})$.It is chemically represented

Vedclass · Accepted Answer

$H_{2}S_{2}O_{7}$

Vedclass · Answer

(B) Oleum,also known as fuming sulfuric acid,is a solution of sulfur trioxide $(SO_{3})$ in sulfuric acid $(H_{2}SO_{4})$.It is chemically represented as $H_{2}S_{2}O_{7}$,which is formed by the combination of $H_{2}SO_{4}$ and $SO_{3}$ $(H_{2}SO_{4} + SO_{3} \rightarrow H_{2}S_{2}O_{7})$.Therefore,the correct chemical formula for oleum is $H_{2}S_{2}O_{7}$.

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