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Organic Chem revision for test

Total questions: 49

Worksheet time: 32mins

Name
Class
Date
1.

Crude oil is made up of:

a)

Ethane

b)

Butane

c)

A mixture of different hydrocarbons

d)

Extremely large hydrocarbons which are broken up once extracted

2.

Which process is used to separate the molecules in crude oil?

a)

Filtration

b)

Recrystallisation

c)

Simple distillation

d)

Fractional distillation

3.

Where do long chain hydrocarbons collect?

a)

At the top

b)

In the middle

c)

At the bottom

4.

Where do short chain hydrocarbons collect?

a)

At the top

b)

In the middle

c)

At the bottom

5.

What process happens as the crude oil enters the fractionating column?

a)

Evaporation

b)

Condensation

c)

Combustion

6.

What process happens at each level in the fractionating column?

a)

Evaporation

b)

Condensation

c)

Combustion

7.

Petroleum can be separated by fractional distillation because its constituents ______________.

a)

are immiscible

b)

have different densities

c)

are highly flammable

d)

have different boiling points

8.

What is the name of this compound?

a)

hex-3-ane

b)

hex-3-ene

c)

hex-3-yne

d)

hex-4-ene

9.

What does the term unsaturated mean?

a)

Contains only single covalent bonds between the carbon atoms in the molecule

b)

Contains at least one double covalent bond between the carbon atoms in the molecule

10.

The IUPAC name of this organic molecule is...

a)

eth-1-ene

b)

propene

c)

ethene

d)

ethyne

11.

What is the correct IUPAC name for this molecule?

a)

2,3-dimethylbutane

b)

dimethylbutane

c)

ethylbutane

d)

None of these

12.

How many isomers exist with the molecular formula C3H6?

a)

One

b)

Two

c)

Three

d)

Four

13.
What is the general formula for saturated hydrocarbons?
a)
CnH2n
b)
CnHn+1
c)
CnH2n+1
d)
CnH2n+2
14.

Which is the structures with IUPAC nomenclature


2,2,4-trimethylpentane

a)
b)
c)
d)
15.

What is an isomer?

a)

compounds with the same formula and structure

b)

compounds with the same formula but a different structure

c)

hydrocarbons with similar chemical properties

d)

hydrocarbons that are used as fuels

16.

How many structural isomers does C5H12 have?

a)

2

b)

3

c)

5

d)

9

17.

What is the name of the reaction used to make polymers?

a)

polymerization

b)

cracking

c)

polygonization

d)

precipitation

18.

Small molecules that make up larger molecules

a)

polymer

b)

monomer

c)

plastic

d)

synthetic

19.

Once formed, it can be heated and reformed over and over again

a)

thermoset

b)

thermoplastic

c)

elastomer

d)

kevlar

20.

Which one of the following is the source of the molecules used to make synthetic plastics?

a)

Natural gas

b)

Crude oil or petroleum

c)

Coal

d)

Mineral ores

21.

What should be done to natural rubber to produce tyres that are harder and more heat resistant?

a)

heat with sulphur

b)

add iron wire

c)

add ammonia solution

d)

add ethanoic acid

22.

Which general formula represents a member of the alkene homologous series?

a)

CnH2n

b)

CnH2n+2

c)

CnH2n-2

d)

CnH2n+1OH

23.

Which two words can be used to describe the types of molecules used to make addition polymers?

a)

Alkane

b)

Alkene

c)

Saturated

d)

Unsaturated

24.

Which general structure is the best example of a section of an addition polymer? Each letter represents a different monomer.

a)

-A-A-A-A-A-A-

b)

-A-B-A-B-A-B-A-B-

c)

-B-C-B-C-B-C-

d)

-A-B-C-A-B-C-A-B-C-

25.

Which diagram shows the correct structure for a repeating unit of polypropene?

a)
b)
c)
d)
26.

Identify the monomer that would be used to make the addition polymer Teflon (polytetrafluoroethene) shown above.

a)
b)
c)
d)
27.

What is the name given to the polymer formed from the unsaturated hydrocarbon monomer shown?

a)

Polythene

b)

Polypropene

c)

Polychloroethene (Polyvinyl chloride)

d)

Nylon

28.

Chloroethene is more commonly called ___

a)

acetic chloride

b)

vinyl acetate

c)

vinyl chloride

d)

phenyl chloride

29.

What is the name of the addition polymer?

a)

poly(bromoethane)

b)

poly(bromoethene)

c)

poly(bromoethanol)

30.

What is the name of the addition polymer?

a)

poly(ethene)

b)

poly(propene)

c)

poly(butene)

31.

What is the name of the addition polymer?

a)

poly(phenylethene)

b)

poly(phenylamine)

c)

poly(benzene)

32.

What is the name of the addition polymer?

a)

poly(ethenenitrile)

b)

poly(etheneamide)

c)

poly(propenenitrile)

33.

Identify the three main categories of synthetic plastics from the list below.

a)

Thermosetting plastic

b)

Thermostat

c)

Thermoplastic

d)

Polymer

e)

Elastomer

34.

Two types of polymer are shown below. Which of the following statements concerning these polymers is correct?

a)

X is thermoplastic whereas Y is thermosetting

b)

X is thermosetting whereas Y is thermoplastic

c)

Both are thermosetting

d)

Both are thermoplastic

35.

Elatomer plastic is known to have rubber like properties. Elastomers can generally be recycled.

a)

True

b)

False

36.

What molecule structure is this?

a)

Elastomer

b)

Thermosetting

c)

Thermoplastic

d)

Bioplastic

37.

Polyethylene can be converted into a thermoset polymer by introducing ___

a)

doping

b)

heat

c)

fluorine

d)

cross-links

38.

Low Density Polyethylene is commonly used for:

a)

food containers (specifically bags), grocery bags, plastic wrap, etc.

b)

shatterproof glass, eyeglass lenses

c)

soft drink bottles, carpet, fiberfill, rope, scouring pads, fabric, Mylar

d)

food containers, medicine containers, automobile batteries, carpet, rope, plastic wrap, lab equipment

39.

High Density Polyethylene is commonly used for:

a)

food containers, bags, lumber, furniture, flower pots, signs, trash cans, toys

b)

food packaging, shampoo containers, construction (ahem PVC pipes ... you see them often), tiles, credit cards

c)

styrofoam, tableware, coffee cups, toys, lighting, signs, insulation

d)

shatterproof glass, eyeglass lenses

40.

Is molecule of HDPE branched or linear?

a)

branched

b)

linear

41.

Is this a branch of HDPE or LDPE:

a)

HDPE

b)

LDPE

42.

Which of these are thermoplastic properties

a)

Reshaping capabilities

b)

High impact resistance

c)

Recyclable

d)

Resistant to high temperatures

e)

Cannot be recycled

43.
What is the percent by mass of magnesium in MgO?
a)
20%
b)
40%
c)
50%
d)
60%
44.
What is the percent by mass of sodium in NaCl?
a)
39%
b)
61%
c)
35%
d)
65%
45.

Name this compound

a)

propanol

b)

propanoic acid

c)

butanoic acid

d)

butanol

46.

Esters are formed through what type of reaction?

a)

hydrolysis

b)

condensation

c)

hydration

d)

dehydration

47.
Name the molecule pictured here
a)
Butyl ethanoate
b)
Ethyl butanoate
c)
Butylethan-1-oate
d)
Ethylbutan1-oate
48.

What is this compound called?

a)

propyl ethanoate

b)

ethyl ethanoate

c)

ethyl propanoate

d)

methyl ethanoate

49.
Which carboxylic acid and which alcohol came together to form the ester pictured here?
a)
Butanol and ethanoic acid
b)
Ethanol and butanoic acid

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