Unit 4 Benzene OE
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How could you explain the arrangement of the 6 extra electrons in the arrangement of benzene
Delocalised and in P orbitals either above or below the carbons
What word is used to describe the stability of Benzene
Aromatic stability
What organic species attacks a benzene ring, state the mechanism for this reaction too
1 - Electrophile 2 - electrophilic substitution
What is the generalised rule for naming aromatic compounds
The group coming off the benzene ring becomes the prefix and “benzene” becomes the suffix. Locations can be determined from the first point if there is more than 1 functional group on the benzene ring
What is the product which is substituted off of the benzene ring in a electrophilic substitution
A hydrogen from the benzene ring is lost forming a H+ ion and is replaced with the Electrophile
Name the Electrophile ion which attacks a benzene ring during nitration
Nitronium ion
Write the equation for forming the NO2+ ion from H2SO4 and HNO3
H2SO4 + HNO3 –> H2NO3+ + HSO4- H2NO3+ –> NO2+ + H2O
What is the name of a benzene ring with a nitronium ion substituted in
Nitrobenzene
Give an industrial use of nitration
The formation of explosives such as TNT
State the general formula of a benzene ring
C6H6