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The sequence that correctly describes th...

The sequence that correctly describes the relative bond strength pertaining to oxygen molecule and its cation or anions is :

A

`O_(2)""^(2-) gt O_(2)""^(-) gt O_(2) gt O_(2)""^(+)`

B

`O_(2) gt O_(2)""^(+) gt O_(2)""^(-) gt O_(2)""^(2-)`

C

`O_(2)""^(+) gt O_(2) gt O_(2)""^(2-) gt O_(2)""^(-)`

D

`O_(2)""^(+) gt O_(2) gt _(2)""O^(-) gt O_(2)""^(2-)`

Text Solution

Verified by Experts

The correct Answer is:
D
Bond order of oxygen molecule = 2
Bond order of oxygen molecule ion = 2.5
Bond order of superperoxide ion `(O_(2)""^(-))=1.5`
Bond order of peroxide ion `(O_(2)""^(2-))=1`
Hence, the order of bond strength is as :
`" "O_(2)""^(+) gt O_(2) gt O_(2)""^(-) gt O_(2)""^(2-)`
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