1.

Which of these represents the correct order of their increasing bond order.

Answer»

`C_(2)ltC_(2)^(2-)ltO_(2)^(2-)ltO_(2)`
`C_(2)^(2-)ltC_(2)^(+)ltO_(2)ltO_(2)^(2-)`
`O_(2)^(2-)ltO_(2)ltC_(2)^(2-)ltC_(2)^(+)`
`O_(2)^(2-)LT C_(2)^(+)ltO_(2)lt C_(2)^(2-)`

SOLUTION :bond order `= (1)/(2)(n_(b)- n_(a))`bond order of `O_(2)^(2-)=(1)/(2)(8 - 6)=1`
bond order of `C_(2)^(+)=(1)/(2)(5 - 2)=1.5`bond order of `O_(2)=(1)/(2)(8 - 4) = 2`
bond order of `C_(2)^(2-)= (1)/(2)(8-2)= 3`


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