Bond Order and Resonance Concepts

The video tutorial explains bond order, bond length, and bond strength, focusing on how these concepts apply to single, double, and triple bonds. It discusses the impact of resonance on bond order, using examples like carbon monoxide, carbon dioxide, and ethanoic acid. The tutorial also covers complex examples involving resonance structures in chlorine oxides, emphasizing the relationship between bond order, bond length, and bond strength.

What is the bond order of a single bond?

• 1

• 3

• 2

• 0.5

How does a higher bond order affect bond length?

• No effect

• Varies randomly

• Decreases length

• Increases length

In a molecule with resonance, what can be said about the bond order?

• It is always three

• It is always zero

• It is always a whole number

• It can be a fraction

What is the bond order of the carbon-oxygen bond in carbon monoxide?

• 1

• 2

• 3

• 1.5

In ethanoic acid, what is the bond order between carbon and oxygen in the resonance structure?

• 1

• 1.5

• 2

• 3

What happens to the bond length when ethanoic acid is protonated?

• No change

• Both bonds shorten

• One bond lengthens, one shortens

• Both bonds lengthen

In the ClO2 ion, what is the bond order of the oxygen bonds?

• 2.5

• 1.5

• 1

• 2

How many bonds are spread over three atoms in the ClO3 ion?

• 3

• 6

• 4

• 5

What is the bond order of the ClO3 ion?

• 1.666

• 1

• 1.5

• 2

What is the effect of resonance on bond strength?

• Increases strength

• Decreases strength

• Equalizes strength

• No effect