benzene, phenol and cyclohexene structure and reactivity questions

test of knowledge on cyclohexene, phenol and bezene according to the OCR spec.

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What is an arene?
an aromatic hydrocarbon containing one or more benzene rings
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what is an aromatic hydrocarbon with the molecular formula 'C6H5NO2' called?
nitrobenzene
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what is an aromatic hydrocarbon with the molecular formula 'C6H5Br' called?
bromobenzene
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what is an aromatic hydrocarbon with the molecular formula 'C6H5C2H5' called?
ethylbenzene
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what is an aromatic hydrocarbon with the molecular formula 'C6H5Cl' called?
chlorobenzene
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what three issues did kekule's model of benzene have?
low reactivity, uneven carbon bond length, lower enthlapy
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what are the key structural features of the delocalised model of benzene?
trigonal planar 120 angle, pi bond causing a delocalised ring making it very stable
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what conditions are needed for the nitration of benzene?
H2SO4, 50 degrees celcius
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what is the general mechanism for the electrophillic substitution of benzene?
curley arrow from ring to E+. unstabe intermediate-H and E bonded. curley arrow from H to +ve ring. E bonded to benzene, and H+ ion
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state why phenol is more reactive.
Oxygen donates lone pair to delocalised ring making it more negative and electron dense, able to induce a dipole.
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phenol can be used for antiseptics and paint. true or false?
True
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when phenol is reacted with bromine water one Br bonds with phenol to produce bromophenol and hydrogen bromide. true or false?
False
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what is formed when phenol reacts with sodium hydroxide-NaOH and sodium-Na?
NaOH- sodium phenoxide and water Na- sodium phenoxide and hydrogen gas
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Other cards in this set

Card 2

Front

what is an aromatic hydrocarbon with the molecular formula 'C6H5NO2' called?

Back

nitrobenzene

Card 3

Front

what is an aromatic hydrocarbon with the molecular formula 'C6H5Br' called?

Back

Preview of the front of card 3

Card 4

Front

what is an aromatic hydrocarbon with the molecular formula 'C6H5C2H5' called?

Back

Preview of the front of card 4

Card 5

Front

what is an aromatic hydrocarbon with the molecular formula 'C6H5Cl' called?

Back

Preview of the front of card 5
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Comments

Amanda

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Ennoyed it thanks!!!

Shary

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A small decent quiz :)

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