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One the basic of ground electronic confi...

One the basic of ground electronic configuration, arrange the following molecules in the oder of increasing `O -O` bond lengths `KO_(2), O_(2) ,O_(2)[AsF_(6)]` .

Text Solution

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`KO_(2) rarr K^(o+) +O_(Theta)`(Peroxide ion)
`O_(2)[AsF_(6)]rarrO_(2)^(o+)("Dioxygenyl") +[As^(+5) F_(6)^(-6)]^(Theta)`
Bond order of `O_(2)^(Theta),O_(2)` and `O_(2)^(o+) =1.0,2` and 1.5 respectively
`:.` Bond length `prop (1)/("Bond order")`
Therefore increasing `(O-O)` bond lenght is `O_(2)^(o+)[AsF_(6)]^(Theta) ltO_(2) ltK^(o+)O_(2)^(Theta)` .
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