What is the name of the model that accounted for the stable properties, intermediate bond lengths, and electrophillic subsitution reactions in Benzene?
'Cyclic' model
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Each carbon, in a Benzene molecule, has one bond to a ?
Hydrogen
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Each carbon has one un-paired electron, which sub level is it in?
2p
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How do the delocalised cloud of electrons come about?
P- orbitals overlap to give the clouds above and below the ring
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What do we know can give evidence for Pauling's model of Benzene?
Enthalpy of hydrogenation
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If Kekule's model was correct what would be the Enthalpy change of hydrogenation?
-360 kJmol-1
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What is the real enthalpy of hydrogenation for Benzene
-208 kJmol-1
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Benzene reacts by which mechanism?
Electrophillic substitution
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Benzene has a high boiling point because
molecules pack together tightly
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What are the conditions for the nitration of Benzene?
330K, Conc HNO3, conc H2SO4
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Why is phenol more reactive than benzene?
The OH donates electron pair onto ring, causing a higher electron density
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How are phenols used in industry?
Antiseptics, disinfectants, resins for paint
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Other cards in this set
Card 2
Front
Who came up with the correct Benzene model?
Back
Pauling
Card 3
Front
What is the name of the model that accounted for the stable properties, intermediate bond lengths, and electrophillic subsitution reactions in Benzene?
Back
Card 4
Front
Each carbon, in a Benzene molecule, has one bond to a ?
Back
Card 5
Front
Each carbon has one un-paired electron, which sub level is it in?
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