question_answer

Which of the following does not have coordinate bond?'

A)  \[S{{O}_{2}}\]                                  

B)  \[HN{{O}_{3}}\]

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

D)  \[HN{{O}_{2}}\]

Correct Answer: C

Solution :

\[{{H}_{2}}S{{O}_{3}}\] has the structure  \[HN{{O}_{2}}\] is a tautometric mixture of its nitrile and nitro forms. Hence, it contains coordinate bond.