Questions I Got Wrong
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Describe the structure and bonding of a benzene molecule
• p- orbitals overlap above and below the ring • form pi bonds • ring is planar • lengths of bonds are equal • bond angle 120
Describe and explain how a molecule of bromine acts as an electrophile.
Electron pair acceptor
Explain why bromine reacts much more readily with cyclohexene than it does with benzene
• benzene is more stable • electrons are delocalised • bezene has lower charge density • bromine is less susceptible to electrophiles
The compound IBr reacts with benzene in an electrophilic reaction. Which compound would be the main product of this reaction, iodobenzene or bromobenzene?
• iodobenzene because Br is more electronegative than I so will be delta positive