OC_Lec 03.2_A

Which bonds are nrolem amd om what sequence?

• Bond Cleavage
• Bond Formation
• Bond Catalyst
• Bond Rearrangement

Which bonds are formed and in what sequence?

• Bond Cleavage
• Bond Formation
• Bond Catalyst
• Bond Rearrangement

Provides information on bond cleavage and bond formation.

• Electron Pushing
• Reaction Energy Diagram
• Neutron Repulsion
• Mixture Energy Gradient

Gives information on kinetics and thermodynamics

• Electron Pushing
• Reaction Energy Diagram
• Neutron Repulsion
• Mixture Energy Gradient

True about full-headed arrow

• Full movement of two electrons
• In the same direction
• Movement of one electron from a bond
• Must have symmetry to represent the two electrons of a bond

True about half-headed arrow

• Full movement of two electrons
• In the same direction
• Movement of one electron from a bond
• Must have symmetry to represent the two electrons of a bond

Formal charge consists of

• valence electron (+Ve)
• Number of bonding pairs (-bp)
• Number of electrons in lone pairs (-lpe-)
• Nuclear mass (neutron + proton)
• Distance from nucleus (-dNC)

True about molecules with resonance structures

• differ in placement of pi bonds and non-bonded electrons
• placement of atoms and sigma bonds stay the same
• differ in placement of sigma bonds and non-bonded electrons
• placement of atoms and pi bonds stay the same

Representation of highly probable/"real" structure of a resonance structure

• Composite
• Hybrid
• Amalgation
• Mirror

Composites or hybrids also represent

• most stable structure
• least stable structure
• none of these