Consider the following molecules underset(I)(O_(2)),O_(2)underset(II)(("AsF"_(6))),underset(III)(KO_(2)) Choose the correct answer.

Consider the following molecules underset(I)(O_(2)),O_(2)underset(II)

1.	Consider the following molecules underset(I)(O_(2)),O_(2)underset(II)(("AsF"_(6))),underset(III)(KO_(2)) Choose the correct answer.
Answer» The correctdecreasing bond ORDER is`II gt I gt III`. The correct DECREASING order of bond length is `III gt II gt I`. The bond strength of I is less than that of III. Bond dissociation energy is highest in case of III. Solution :In `O_(2)(AsF_(6)), O_(2)^(+)` has bond order 2.5 . `O_(2)` has bond order 2.0 . In `KO_(2), O_(2)^(-)` has bond order 1.5 Higher the bond order, smaller is the bond length. HENCE, the order is `O_(2)(AsF_(6)) gt O_(2) gt KO_(2)`.