1.

Arrange the following molecules in decreasing order of bond length.

Answer»

`O_(2)GT O_(2)^(-)gt O_(2)^(+)gtO_(2)^(2-)`
`O_(2)^(2-)gt O_(2)^(-)gtO_(2)gt O_(2)^(-)`
`O_(2)^(2-)gt O_(2)^(-)gtO_(2)gtO_(2)^(-)`
`O_(2)^(+)gtO_(2)^(+)gtO_(2)^(2-)gt O_(2)`

SOLUTION :SINCE the bond lenguh Is nversely PROPORTIONAL to the bond order so option .b. is correct.


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