Which of the following has the minimum bond length?

Question

Which of the following has the minimum bond length? (A) O2 - (B) O22- (C) O2 (D) O2+

Tardigrade Admin · Accepted Answer

Bond order of O 2+=(10-5/2)=2.5 Bond order of O 2-=(10-7/2)=1.5 Bond order of O 22-=(10-8/2)=1 Bond order of O 2=(10-6/2)=2 ∵ Maximum bond order = minimum bond length. ∴ Bond length is minimum for O 2+

Q. Which of the following has the minimum bond length?

$O_{2}^{-}$

$O_{2}^{2 -}$

$O_{2}$

$O_{2}^{+}$

Bond order of $O_{2}^{+} = \frac{10 - 5}{2} = 2.5$
Bond order of $O_{2}^{-} = \frac{10 - 7}{2} = 1.5$
Bond order of $O_{2}^{2 -} = \frac{10 - 8}{2} = 1$
Bond order of $O_{2} = \frac{10 - 6}{2} = 2$
$∵$ Maximum bond order = minimum bond length.
$∴$ Bond length is minimum for $O_{2}^{+}$

Q. Which of the following has the minimum bond length?

O2−​

O22−​

O2​

O2+​

Bond order of O2+​=210−5​=2.5 Bond order of O2−​=210−7​=1.5 Bond order of O22−​=210−8​=1 Bond order of O2​=210−6​=2 ∵ Maximum bond order = minimum bond length. ∴ Bond length is minimum for O2+​

$O_{2}^{-}$

$O_{2}^{2 -}$

$O_{2}$

$O_{2}^{+}$

Bond order of $O_{2}^{+} = \frac{10 - 5}{2} = 2.5$
Bond order of $O_{2}^{-} = \frac{10 - 7}{2} = 1.5$
Bond order of $O_{2}^{2 -} = \frac{10 - 8}{2} = 1$
Bond order of $O_{2} = \frac{10 - 6}{2} = 2$
$∵$ Maximum bond order = minimum bond length.
$∴$ Bond length is minimum for $O_{2}^{+}$