question_answer

Which of the following represents the correct order of decreasing number of \[S=O\]bonds?

A) \[{{H}_{2}}S{{O}_{4}}>{{H}_{2}}S{{O}_{3}}>{{H}_{2}}{{S}_{2}}{{O}_{8}}\]

B) \[{{H}_{2}}{{S}_{2}}{{O}_{8}}>{{H}_{2}}S{{O}_{3}}>{{H}_{2}}S{{O}_{4}}\]

C) \[{{H}_{2}}{{S}_{2}}{{O}_{8}}>{{H}_{2}}S{{O}_{4}}>{{H}_{2}}S{{O}_{3}}\]

D) \[{{H}_{2}}S{{O}_{3}}>{{H}_{2}}{{S}_{2}}{{O}_{8}}>{{H}_{2}}S{{O}_{4}}\]

Correct Answer: C

Solution :

The structures of are as follows:

Thus, the correct order of decreasing number of \[S=O\]bonds is

\[{{H}_{2}}{{S}_{2}}{{O}_{8}}>{{H}_{2}}S{{O}_{4}}>{{H}_{2}}S{{O}_{3}}\]