question_answer

Select the incorrect statement among the following.

A)  \[{{\text{O}}_{\text{3}}}\]is used as germicide for purification of air

B)  In \[{{O}_{3}},O-O\]bond length is identical with that of molecular oxygen

C)  \[{{\text{O}}_{\text{3}}}\]molecule is angular in shape

D)  \[{{\text{O}}_{\text{3}}}\]is an oxidising agent

Correct Answer: B

Solution :

                 In \[{{\text{O}}_{3}},\text{O}-\text{O}\] bond length is not identical with that of the molecular oxygen. It is found to be intermediate of \[\text{O}-\text{O}\] and \[\text{O=O}\] bond lengths. This is due to resonance. In ozone bond angle of \[\text{O}-\text{O}-\text{O}\] is \[\text{116}\text{.}{{\text{8}}^{\text{o}}}\] and bond length \[(O-O)\] is\[1.278\overset{\text{o}}{\mathop{\text{A}}}\,.\]