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AQA Trilogy Chemistry Paper 2 revision

Total questions: 24

Worksheet time: 27mins

Name
Class
Date
1.
During the process of fractional distillation, the petroleum compounds are separated according to the difference in their _______________.
a)
boiling point
b)
density
c)
unsaturation
d)
mass
2.
Which of the following compounds is an example of hydrocarbon?
a)
CO2
b)
C2H6
c)
C2H5OH
d)
CH3COOH
3.
At which pipe: M or N are hydrocarbons with lower boiling points collected?
a)
M
b)
N
4.
How does the temperature change from top to bottom?
a)
Increases
b)
Decreases
c)
It does not change
d)
Cannot be determined
5.
How many carbon atoms are in ethane?
a)
1
b)
2
c)
3
d)
4
6.

If an alkane has 10 carbon atoms, how many hydrogen atoms will it have?

a)

20

b)

22

c)

40

d)

42

7.
What are the products of combustion if there is plenty of oxygen available?
a)
carbon monoxide and hydrogen
b)
carbon dioxide and water
c)
carbon dioxide and hydrogen
d)
carbon monoxide and water
8.
In fractional distillation, longer length hydrocarbons are found where in the distillation column?
a)
Top
b)
Bottom
9.

Which of these would help us to conserve natural resources? Select three answers.

a)

Recycling paper from newspapers

b)

Using fuels made from sugar rather than fossil fuels

c)

Putting rubbish in a landfill

d)

Passing down clothes from older children to younger children

e)

Using cheap metals like steel rather than titanium

10.

Which of these cannot be removed by passing water through filter paper alone? Select two answers.

a)

Dissolved chemicals e.g. laundry powder

b)

Particles of grit and silt

c)

Dead insects

d)

Unwanted colours or smells

11.

Which of these are examples of renewable resources? Select all correct answers.

a)

Coal

b)

Fuel made from corn

c)

Crude oil

d)

Wool

e)

Helium gas

12.

Chemicals used to sterilize water after filtration include...? Select all correct answers.

a)

Chlorine

b)

Carbon dioxide

c)

Oxygen

d)

Ozone

e)

Salt

13.

A process called reverse osmosis can be used to desalinate sea water, instead of distillation. This means...

a)

Removing solid particles like silt

b)

Removing dissolved salts

c)

Removing bacteria and viruses

d)

Removing unwanted smells

14.

A "Lifestraw" can be used to drink directly from rivers or streams.

Which of these is the most unusual about the filter in a "Lifestraw", in comparison to an ordinary filter?

a)

It is designed to remove fine sand

b)

It is able to remove bacteria

c)

It is small

d)

It can be operated by just one person

15.

Which of these about distillation is false?

a)

It needs less energy than filtration

b)

Any chemicals which were dissolved in the water are left in the flask.

c)

The water must first be heated up and then cooled back down again

d)

It can be done in remote locations using the heat of the sun to evaporate the water

16.

Which of these methods is not used to kill bacteria in water?

a)

Ozone gas

b)

Chlorine

c)

UV light

d)

Oxygen gas

17.

Which of these is likely to contain the highest concentrations of both harmful bacteria and toxic chemicals?

a)

Sea water

b)

River or reservoir water

c)

Distilled water

d)

Raw sewage

18.
Which is an endothermic reaction?
a)
Decomposition of calcium carbonate
b)
Respiration
c)
Lighting a match
d)
Acid neutralisation
19.
In an exothermic reaction the products have
a)
more energy than the reactants
b)
the same energy as the reactants
c)
less energy than the reactants
d)
no energy
20.
At what time the reaction reached equilibrium?
a)
t1
b)
t2
c)
t3
d)
t4
21.

Which of the following conditions are going to increase the yield of H2?

N2 + 3 H2 ↔ 2 NH3 +92 kJ

a)

Decreasing Temperature and pressure

b)

Increasing Temperature and Pressure

c)

Increasing Temperature and concentration of NH3

d)

Decreasing Temperature and concentration of N2

22.

For the reaction...

N2 (g) + 3 H2(g) <−> 2 NH3 (g)


If the pressure in the system is increased, the equilibrium position will __________________.

a)

shift to the left

b)

shift to the right

c)

not shift

23.
Why don't all collisions between particles cause a reaction?
a)
the particles also need to collide with a catalyst
b)
not all the particles collide with enough energy
c)
not all the particles collide at a high enough temperature
d)
the particles need to collide with each other twice
24.
Cracking.....
a)
Breaks larger hydrocarbons into smaller hydrocarbons
b)
Separates hydrocarbons based on their length
c)
Detects alkenes

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