Download assignment 4-2

NAME ________________________
CHEMISTRY 30
ASSIGNMENT 4-2
TOPIC(S) COVERED: Text (417-444)
DIRECTIONS: Complete the following questions. Refer to the text pages indicated for any
assistance.
PART 1: SHORT ANSWER
DIRECTIONS: Complete the following questions. Please show all work unless specifically
instructed otherwise.
1. Name each of the following alcohols:
2. Draw each of the following alcohols:
a) methanol
b) propan-2-ol
d) 3-ethyl-4-methyloctan-1-ol
e) 2,4-dimethylcyclopentanol
3. Name the following alkyl halides:
4. Draw condensed structural formulas for the following alkyl halides:
a) bromoethane
b) 2,3,4-triiodo-3-methylheptane
5. Name each of the following carboxylic acids:
6. Draw a condensed structural formula for each of the following carboxylic acids:
a) hexanoic acid
b) 3-propyloctanoic acid
c) 3,4-diethyl-2,3,5-trimethylheptanoic acid
7. Name each of the following esters:
8. Draw the following esters:
a) methyl pentanoate
b) heptyl methanoate
d) propyl octanoate
PART 2: MULTIPLE CHOICE
DIRECTIONS: Read each question carefully and choose the best answer.
1. The function group in methanol is:
a.
– OH
b.
c.
– X (X is a halogen)
d.
2. Use the following information to answer the next question.
The compound that contains hydroxyl group as its functional group is
a.
(i)
c.
(iii)
b.
(ii)
d.
(iv)
3. The functional group present in the compound below is:
a.
b.
carboxyl group
halogen group
c.
d.
hydroxyl group
ester group
4. Use the following information to answer the next question.
The functional group present in the given structure is
a.
hydroxyl group
c.
b.
ester group
d.
carboxyl group
alkenyl group
5. Use the following information to answer the next question.
The IUPAC name of the given compound is
a.
pentanoic acid
b.
butanoic acid
c.
d.
propyl methanoate
2 – oxy butan-1-ol
6. Use the following information to answer the next question.
The above structure is an isomer of
a.
butane
b.
pentane
c.
d.
heptane
hexane
7. Which of the following structures does not represent an isomer of hexane?
a.
b.
c.
d.
8. Use the following information to answer the next question.
Ethylene glycol acts as antifreeze and is used in automobiles and computers. It
is also used for preserving body organs and in the manufacture of capacitors. Its
structure is shown below.
The IUPAC name of this compound is
a.
ethanol
b.
ethane-1,2-diol
c.
d.
1-hydroxyethane-1,2-diol
2,2-dihydroxyethane-1,2-diol
9. Use the following information to answer the next question.
The molecular structure of compound ‘x’ is given below:
This fruit-scented compound is generally used in ice creams and other food
stuffs as a flavouring agent.
Which of the following functional groups is present in compound ‘x’?
a.
Ester
c.
Alcohol
b.
Carboxyl
d.
Alkenyl
10. Use the following information to answer the next question.
Hydrogen bonding in organic compounds influences their
characteristic properties, such as boiling point, solubility, etc.
Alcohols show hydrogen bonding due to the presence of an
oxygen atom.
Which of the compounds shown below shows the greatest hydrogen-bonding effect?
a.
CH3 – CH2 – OH
c.
CH3 – OH
b.
CH3 – CH2 – CH2 – OH
d.
CH3 – CH2 – CH2 – CH2 – OH
11. A functional group is a special group of atoms that is mainly responsible for the chemical
behaviour of molecules. Which functional group is present in esters?
a.
c.
b.
d.
12. Alkyl halides are hydrocarbons that contain at least one halogen atom.
What is the name of this alkyl?
a.
2,5-dichloro-1methylcyclohexane
b.
1,3-dichloro-4methylcyclohexane
c.
d.
4,6-dichloro-1methylcylclohexane
1,5-dichloro-2methylcyclohexane
13. Rubbing alcohol is a colourless alcohol that has a strong colour. It is the simplest known
form of secondary alcohol. Its structure is:
Rubbing alcohol is called
a.
Propan-2-one
b.
Propan-2-ol
c.
d.
Propanal
Propanol
14. Use the following information to answer the next question.
Glycerol is a colourless and odourless liquid with a sweet taste. It contains three
hydroxyl groups and it is soluble in water.
The structure of glycerol is:
IUPAC of glycerol is:
a.
Propane-1,2,3-triol
b.
Propan-1,2,3-oic acid
c.
d.
Propane-1,2,3-diol
Propan-1,2,3-oate
15. The most popular fruit in Europe are bananas. The characteristic smell of a banana is mainly
due to a compound called an ester. The structure of the organic compound present in bananas
is:
What is the name of the organic compound present in bananas?
a.
2-proplymethyl ethanoate
c.
3-methylbutyl butanoate
b.
3-methylbutyl ethanoate
d.
2-methyl-3-methyl butanoate
16. Many pleasant and unpleasant aromas are due to the presence of organic compunds. The
general formula of the compound known to generate aromas is:
a.
ROH
c.
RCOOH
b.
RX
d.
RCOOR'
17. Four organic compounds belonging to different functional groups are:
Compound
1.
Functional group
2.
3.
4.
Which of the above given compounds has the highest boiling point?
a.
1
c.
3
b.
2
d.
4
18. Petroleum is the main source of the hydrocarbons that are used to produce all of the
following materials, except one. Which material is the exception?
a.
fuel
c.
wood
b.
plastic
d.
synthetic fibre