Which of the following statements is correct | vedclass

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(A) Oleum $(H_2S_2O_7)$,also known as fuming sulfuric acid,is prepared by the absorption of $SO_3$ in concentrated $H_2SO_4$. The reaction is: $H_2SO_

Vedclass · Accepted Answer

It is prepared by adsorption of $SO_3$ in conc. $H_2SO_4$

Vedclass · Answer

(A) Oleum $(H_2S_2O_7)$,also known as fuming sulfuric acid,is prepared by the absorption of $SO_3$ in concentrated $H_2SO_4$. The reaction is: $H_2SO_4 + SO_3 \rightarrow H_2S_2O_7$. It contains an $S-O-S$ linkage,not an $O-O$ linkage. It has two $OH$ groups in its structure. Therefore,the correct statement is that it is prepared by the absorption of $SO_3$ in concentrated $H_2SO_4$.

Which of the following statements is correct for oleum?

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