Court of Owls

Chemistry Level pending

After locking up Scarecrow in Arkham Asylum, Batman returns to Mr.Freeze's lab to thank him.

He finds Mr.Freeze unconscious and looks around his laboratory to investigate. He finds a message on the wall.

"The court of owls awaits you"

Batman tries to trace the source of the message, but must answer this question to decode the encryption.

"What is the bond order of the compound whose chemical formula is the same as the first two letters of the word co urt

(This question must be answered using ideas from molecular orbital theory)

1 2.5 1.5 3 2

Vitthal Yellambalse by Vitthal Yellambalse , 22, India

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2 solutions

Ayon Ghosh
Dec 27, 2017

Else write MO configuration of CO noting that it has 14 electrons... ( σ 1 s ) 2 ( σ ∗ 1 s ) 2 ( σ 2 s ) 2 ( σ ∗ 2 s ) 2 ( π 2 p x ) 2 ( π 2 p y ) 2 ( σ 2 p z ) 2 (\sigma1s)^2(\sigma^*1s)^2(\sigma2s)^2(\sigma^*2s)^2(\pi2p_{x})^2(\pi2p_{y})^2(\sigma2p_{z})^2 Bond Order = 10 − 4 / 2 = 3 \text{Bond Order} = 10-4/2 = \large\boxed{3} according to MO theory.

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Using molecular orbital theory ,

In the diagram, the molecular orbital energy diagram of the CO molecule is given.

Number of bonding electrons = 8

Number of anti-bonding electrons = 2

Difference = 6

Dividing by 2 = 6/2 = 3

So Bond Order of CO is 3.

(A lone pair of electrons from Oxygen atom will enter the sigma-3 bonding molecular orbital (according to the diagram), explaining the existence of a co-ordinate bond between Carbon and Oxygen in CO molecule)

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