Question

The correct order in which the O-O bond length increases in the following is
A. `H_2O_2` lt `O_2` lt `O_3`
B. `O_3` lt `H_2O_2` lt `O_2`
C. `O_2` lt `O_3`lt `H_2O_2`
D. `O_2` lt`H_2O_2` lt `O_3`

Answer 1

Correct Answer - C
Structure of `O_2` is O=O
Structure of `H_2O_2` is H-O-O-H
Structure of `O_3` is resonance hybrid of following two structures.

Thus O-O bond length is in the order
`O_2 lt O_3 lt H_2O_2`.