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WorksheetsChemistry A2 Module 6.1 Foundations
Total questions: 20
Worksheet time: 10mins
Select the correct statements about Benzene:
All of the carbon - carbon bonds are the same length
Benzene readily undergoes addition reactions
Experimentally, enthalpy of hydrogenation is 152 kj mol-1 less energetically stable than predicted
The electrons are delocalised
Name the aromatic compound:
1-bromo-5-fluoro-6-methylbenzene
1-methyl-2-bromo-6-flourobenzene
1-bromo-3-fluoro-2-methylbenzene
1-bromo-2-methyl-3-fluorobenzene
Name the aromatic compound:
1,methy-2,4-nitrobenzene
1,3-dinitro-4-methylbenzene
2,methy-1,5-dinitrobenzene
4,methy-1,3-dinitrobenzene
Nitration of benzene is described as:
Electrophilic addition
Electrophilic substitution
Nucleophilic addition
Nucleophilic substitution
Benzene does not directly react with halogens as the aromatic ring is too stable, iron halides or aluminium halides are used, these are called (a)
This type of reaction is called Friedel-Crafts (a)
What is this compound called?
(a)
Phenol is....
Neutral
weak base
weak acid
Strong acid
When phenol undergoes substitution reactions, it directs in what position?
1, 3 and 5
2 only
4 only
2, 4 and 6
When nitrobenzene undergoes substitution, it directs in what position?
2,4 and 6
3 and 5
3 only
4 only
Predict the product produced when nitrobenzene reacts with chlorine:
3,5-dichloronitrobenzene
3-chloronitrobenzene
2-chloronitrobenzene
2,4,6-trichloronitrobenzene
What is the correct definition of a nucleophile?
A species attracted to an electron rich part of a molecule, it donates a pair of electrons to make a new covalent bond.
A species attracted to an electron deficient part of a molecule, it donates electrons to make a new covalent bond.
A species attracted to an electron deficient part of a molecule, it donates a pair of electrons to make a new covalent bond.
A species attracted to an electron deficient part of a molecule, it donates a pair of electrons to make a new ionic bond.
Sodium borohydride (NaBH4) is a source of what?
H2
H+
H-
Predict the organic product of the reaction between NaBH4 and propanal:
propan-1-ol
propanioc acid
Propanone
propene
What test will identify a specific aldehyde or ketone?
Tollens
Fehlings
Acidified potassium dichromate
2.4-dintrophenylhydrazine (2,4-DNP)
Name the following ester:
Butyl propanoate
Butyl propanoic acid
Propyl butanoate
Propyl butylester
Propyl ethanoate is hydrolysed under what conditions to form ethanoic acid and propan-1-ol?
Acidic
Alkaline
Neutral
Ethyl propanoate is hydrolysed under what conditions to form sodium propanoate and ethanol?
Acidic
Alkaline
Neutral
A reaction of an acyl chloride and an alcohol forms what type of organic product?
Carboxylic acid
Ester
Amide
Ketone
A reaction of an acyl chloride and a primary amine produces what type of organic compound?
Carboxylic acid
Ester
Primary amide
Secondary amide
