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WorksheetsAQA Chemistry Trilogy Paper 2 Basics
Total questions: 57
Worksheet time: 29mins
Name
Class
Date
1.
Increasing concentration .......................... rate.
a)
increases
b)
decreases
c)
doesn't affect
2.
Increasing temperature .............................. rate.
a)
increases
b)
decreases
c)
doesn't affect
3.
Increasing pressure ............................. rate.
a)
increases
b)
decreases
c)
doesn't affect
4.
Increasing surface area ........................ rate.
a)
increases
b)
decreases
c)
doesn't affect
5.
Adding a catalyst ..........................the rate of a specific reaction.
a)
increases
b)
decreases
c)
doesn't affect
6.
Choose the one that WOULD NOT increase the rate of reaction between acid and marble chips.
a)
Increasing temperature
b)
increasing surface area of marble chips
c)
increasing concentration of acid
d)
adding an iron catalyst
7.
Crushing marble chips to a powder would................ the surface area.
a)
increase
b)
decrease
c)
not affect
8.
Explain how increasing concentration increases the rate of the reaction?
a)
More particles in the same volume. More frequent effective collisions.
b)
Less particles in the same volume. Less frequent collisions.
9.
Which of these would increase the rate of a reaction?
a)
Use a bigger beaker
b)
Increase the temperature
c)
Have someone else timing
10.
Explain how increasing pressure affects rate
a)
More exposed reacting particles. More frequent effective collisions.
b)
Particles have more kinetic energy. Particles move faster. More frequent effective collisions.
c)
Same number of gas particles in smaller volume. More frequent effective collisions.
d)
Lowers the activation energy, by providing an alternative route.
11.
Explain how increasing surface area affects rate
a)
More exposed reacting particles. More frequent effective collisions.
b)
Particles have more kinetic energy. Particles move faster. More frequent effective collisions.
c)
Same number of gas particles in smaller volume. More frequent effective collisions.
d)
Lowers the activation energy, by providing an alternative route.
12.
Explain how increasing temperature affects rate
a)
More exposed reacting particles. More frequent effective collisions.
b)
Particles have more kinetic energy. Particles move faster. More frequent effective collisions.
c)
Same number of gas particles in smaller volume. More frequent effective collisions.
d)
Lowers the activation energy, by providing an alternative route.
13.
Explain how adding a catalyst increases the rate of the reaction
a)
More exposed reacting particles. More frequent effective collisions.
b)
Particles have more kinetic energy. Particles move faster. More frequent effective collisions.
c)
Same number of gas particles in smaller volume. More frequent effective collisions.
d)
Lowers the activation energy, by providing an alternative route.
14.
Exothermic?
a)
b)
15.
What is activation energy?
a)
The minimum amount of energy needed for particles to react.
b)
The maximum amount of energy needed for particles to react.
16.
Which curve shows the catalysed reaction?
a)
1
b)
2
17.
How do you calculate the rate of reaction?
a)
Amount of reactant or product ÷ time taken
b)
time taken ÷ amount of reactant or product
18.
Where is the reaction fastest?
a)
At the beginning, where it's steepest
b)
At the end
c)
In the middle
d)
When the line goes horizontal
19.
Where does the reaction finish?
a)
At the beginning
b)
At the end
c)
In the middle
d)
When the line goes horizontal
20.
What is a compound made of hydrogen and carbon only?
a)
Hydrogencarbonate
b)
Carbohydrate
c)
Hydrocarbon
d)
Hydroxide
21.
Name this alkane C3H8.
a)
Butane
b)
Propane
c)
Ethane
d)
Methane
22.
Which hydrocarbon is this?
a)
ethane
b)
ethene
c)
propane
d)
propene
23.
What is crude oil?
a)
A mixture of hydrocarbons
b)
A compound of hydrocarbons
c)
A hydrocarbon
d)
A formulation
24.
Which step IS NOT involved in the fractional distillation of crude oil?
a)
Crude oil separates into hydrocarbons with different boiling points.
b)
Crude oil is burned.
c)
Crude oil enters the fractionating column.
d)
Crude oil is vapourised by heating.
25.
Where do large hydrocarbon chains separate in fractional distillation?
a)
At the top where it's hot.
b)
At the top where it's cool.
c)
At the bottom where it's hot.
d)
At the bottom where it's cool.
26.
What does cracking do?
a)
Breaks up long carbon chains into smaller alkane and alkene.
b)
Joins monomers together to make long chains.
27.
Choose the formula for propene
a)
C2H4
b)
C3H6
c)
C3H8
d)
C2H6
28.
What do you see when you test an alkene with bromine water?
a)
Goes clear.
b)
Goes from orange to colourless.
c)
Goes from colourless to orange.
d)
Stays orange and clear.
29.
Name the polymer made from the monomer ethene.
a)
poly(ethene)
b)
poly(ethane)
30.
What does 'pure substance' mean?
a)
No bacteria.
b)
You can drink it.
c)
It's natural.
d)
Contains one element or compound.
31.
How do boiling point/melting points tell you if a substance is pure?
a)
Happens at a specific temperature, not a range.
b)
Happens at a range, not a specific temperature.
32.
What is a mixture designed as an useful product?
a)
Solution
b)
Formulation
c)
Pure
d)
Compound
33.
Choose the one that is NOT a formulation.
a)
Paint
b)
cosmetics
c)
sugar
d)
medicine
34.
In chromatography, spots move higher up the paper if it is more attracted to what? (stationary paper or mobile solvent)
a)
Mobile
b)
Stationary
35.
Chromatography: If the spot moves 4cm and the solvent 10cm, calculate the Rf value.
a)
4
b)
6
c)
0.4
d)
0.6
36.
What is the test and result for hydrogen?
a)
Damp blue litmus paper. Goes white (bleached)
b)
Lit splint. Squeaky pop.
c)
Glowing splint. Relights.
d)
Bubbles through limewater goes cloudy.
37.
What is the test and result for oxygen?
a)
Damp blue litmus paper. Goes white (bleached)
b)
Lit splint. Squeaky pop.
c)
Glowing splint. Relights.
d)
Bubbles through limewater goes cloudy.
38.
What is the test and result for carbon dioxide?
a)
Damp blue litmus paper. Goes white (bleached)
b)
Lit splint. Squeaky pop.
c)
Glowing splint. Relights.
d)
Bubbles through limewater goes cloudy.
39.
What is the test and result for chlorine?
a)
Damp blue litmus paper. Goes white (bleached)
b)
Lit splint. Squeaky pop.
c)
Glowing splint. Relights.
d)
Bubbles through limewater goes cloudy.
40.
What is the % of N2 in the atmosphere today?
a)
78
b)
87
c)
7
d)
8
41.
What is the % of O2 in the atmosphere today?
a)
0.01
b)
2
c)
12
d)
21
42.
What is the % of CO2 in the atmosphere today?
a)
3
b)
0.03
c)
0.3
d)
30
43.
Which has NOT reduced the % CO2 from the early atmosphere to now?
a)
Photosynthesis from algae and plants.
b)
Dissolved in oceans.
c)
Locked away by sedimentary rocks and fossil fuels.
d)
Respiration from animals.
44.
Why has the% O2 increased from the early atmosphere to now?
a)
Photosynthesis from algae and plants.
b)
Dissolved in oceans.
c)
Volcanoes.
d)
Respiration from animals.
45.
Carbon monoxide is...
a)
Toxic
b)
Corrosive
46.
Complete combustion: Fuel + Oxygen -->
a)
Carbon dioxide + water
b)
Carbon monoxide + water + carbon (soot/ particulates)
c)
Carbon + water
d)
Carbon + hydrogen
47.
Incomplete combustion: Fuel + Oxygen -->
a)
Carbon dioxide + water
b)
Carbon monoxide + water + carbon (soot/ particulates)
c)
Carbon only
d)
Carbon + hydrogen
48.
What pollutants cause acid rain?
a)
Oxygen and water.
b)
Sulfur dioxide and nitrogen.
c)
Sulfur dioxide and nitrogen oxides.
49.
Why are thermosetting polymers hard and rigid?
a)
They have strong covalent cross-links between chains.
b)
They have strong metallic bonds between chains.
c)
They have strong ionic bonds between chains.
50.
What is a finite resource?
a)
One that can be recycled once it has been used.
b)
One that can not be replaced once it has been used.
c)
One that can be reused.
51.
Which is NOT included in the 3 Rs?
a)
refresh
b)
reuse
c)
recycle
d)
reduce
52.
Which is NOT part of the life cycle assessment, LCA?
a)
Buying the product.
b)
Getting the raw materials.
c)
Manufacturing and packaging.
d)
Using and disposing of the product.
53.
What does 'potable' water mean?
a)
Water that is the pure element.
b)
Water containing no microbes.
c)
Water that is safe to drink. Can contain low levels of dissolved salts and microbes.
d)
Water that is not safe to drink. High levels of dissolved salts and microbes.
54.
What treatments do we NOT do to make fresh water potable water?
a)
Sterilisation
b)
Filtration
c)
Crystallisation
55.
What are the 2 methods we use to desalinate seawater to make it potable?
a)
Distillation. Reverse osmosis.
b)
Filtration. Reverse osmosis.
c)
Distillation. Filtration.
56.
Name the process: Heat up salt water solution. Water will evaporate and then condense.
a)
Filtration.
b)
Chromatography.
c)
Distillation
d)
Crystallisation
57.
What type of water is treated by screening, sedimentation, aerobic digestion & anaerobic digestion.
a)
Seawater.
b)
Fresh water.
c)
Rain water.
d)
Wastewater.
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