Download Organic Chemistry Unit Test! /50

Organic Chemistry Unit Test!
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Name
__________________
Knowledge and Understanding (13 marks)
1.
2.
3.
4.
5.
Which molecule could form constitutional isomers?
a.
CH4
d. C2H5Cl
b.
C2H3F
e. CH2Cl2
c.
C2H6O
Stereoisomers are molecules that have the same molecular formulas but have
a.
Different functional groups
b.
The same sequence of atoms, but their atoms are bonded differently in 3-D space
c.
The same functional groups, but are bonded in a different sequence
d.
Multiple bonds instead of single bonds
e.
Different placement of their multiple bonds
The use of compounds in which group has led to reduction of the ozone layer?
a.
Alcohols
b.
Aromatics
c.
Ethers
d. alkyl halides
e. amides
Which is a characteristic feature of a substitution reacton?
a.
Carbon atoms are bonded to the same number of atoms in the product as in the reactant
b.
Carbon atoms are bonded to a smaller number of atoms in the product than in the reactant
c.
Carbon atoms are bonded to a larger number of atoms in the product than in the reactant
d.
Two compounds react to form one compound
e.
There are fewer carbon-carbon bonds in the products than in the reactants.
Which two reactants could undergo a condensation reaction to produce an amide and water?
a.
An alcohol and an amine
d. A carboxylic acid and an amine
b.
A carboxylic acid and an amide
e. An alcohol and an amide
c.
An acid an an amine
Organic Chemistry Unit Test!
6.
7.
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Name
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In an oxidation reaction
a.
A carbon will form fewer bonds to carbon
b.
A carbon will form fewer bonds with oxygen or more bonds to hydrogen
c.
A carbon will form more bonds with oxygen or fewer to hydrogen
d.
Two small molecules combine to form a large molecule
e.
Two large molecules react to form a large molecule and a small molecule
Polymers can be made through which types of reactions?
a.
Elimination and oxidation
d. Addition and reduction
b.
Condensation and addition
e. Hydrolysis and elimination
c.
Substitution and addition
8. Use a structural diagram or line diagram and draw the following: (4 marks)
a. butyl ethanoate
d. N-ethyl-N-methyl-pentan-2-amine
b. N,N-dimethyl propan-1-amine
e. 2-cyclopropyl-but-1-ene
Organic Chemistry Unit Test!
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Name
__________________
Making Connections (10 marks)
1. Thalidomide has caused enormous grief, yet now it is a source of hope. Explain, using key terms
and knowledge of organic chemistry, how thalidomide has gone from “zero to hero”. (4 marks)
2. Transfats, anti-oxidants and using ‘green solvents’. In theory, you read a little blurb on all of
these topics! Pick one of them. Describe 2 points you found interesting from your chosen topic.
(2 marks)
3. Look around you. There are plastics everywhere! How have organic chemists been able to do
so much with such a basic starting material (ethene derivatives)? Explain why such variety in
plastic properties is possible, and give an example of a plastic to illustrate one of your points (4
marks)
Organic Chemistry Unit Test!
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Thinking and Inquiry (25 marks)
1. Suppose you are working with four unknown compounds in a chemistry laboratory. Your
teacher tells you the compounds are ethane, ethanol, ethyl ethanoate, and ethanoic acid.
a. Use the table below to identify each unknown compound: (4 marks)
Compound
Solubility in
water
Hydrogen
bonding
Boiling Point
Odour
Polarity
A
B
Not soluble
Soluble
-89OC
77OC
Odourless
Sweet
Non-polar
Polar
C
Very soluble
None
Accepts from water,
can’t form between
own molecules
Very strong
78OC
Very polar
D
Very soluble
Extremely strong
118OC
Sharp, antiseptic
smell
Sharp, vinegar smell
b.
Very polar
According to how you identified the substances, explain the boiling point differences,
be specific. (3 marks)
2. Why can ethanol dissolve easily in water, but pentan-1-ol is not soluble? Use words and a
picture to illustrate your answer (3 marks)
3. Draw a reaction scheme:
a. Reaction of but-1-ene with hydrogen bromide (2 marks)
Organic Chemistry Unit Test!
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b. Polymerization of the following monomer (show 3 linked monomers) (2 marks)
c. Polymerization of the following monomer (show 3 linked monomers)(2 marks)
d. Oxidation of pentan-2-one (1 marks)
e. Synthesis of ethoxyethane from ethane. (4 marks)
4. Explain why each of the following molecules are named incorrectly. Provide the correct name
for each. (4 marks)
a. 4-methylbutane
C. Butoxyethane
b. 3,4-dimethylpentane
d. Methyl-3-ethylbutanoate