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.