Resonance: Example Problems 2

Which of the following patterns indicates a resonance structure?

• Single-triple-single

• Triple-single-triple

• Double-single-double

• Single-double-single

What happens to the lone pair when it is in resonance with a double bond?

• It disappears

• It remains stationary

• It moves to the next atom

• It forms a new π bond

What is the primary rule for moving lone pairs in resonance structures?

• Move them to the nearest atom

• Do not move them at all

• Move them first before π bonds

• Move them to the double bond

What is the significance of a lone pair in resonance with a double bond?

• It forms a new atom

• It has no effect

• It destabilizes the structure

• It stabilizes the structure

When dealing with carbocations in resonance, which component is moved first?

• Lone pairs

• Single bonds

• π bonds

• Carbocations

How does a carbocation affect the movement of π bonds in resonance?

• It prevents any movement

• It allows π bonds to move towards it

• It causes π bonds to move away

• It has no effect

In a resonance structure, what is the effect of a lone pair separated by a single bond from a carbocation?

• The lone pair forms a new bond

• The carbocation moves to the lone pair

• The lone pair moves to the carbocation

• No resonance occurs

In the challenge problem, what is the role of the carbanion?

• It forms a new bond

• It accepts electrons

• It donates electrons

• It remains unchanged

Why are resonance structures without a complete octet considered negligible?

• They are too common

• They are too rare

• They are too complex

• They are unstable

What is the main reason for not considering certain resonance structures?

• They are too common

• They are too simple

• They lack a complete octet

• They are too complex