Font size
WorksheetsAQA Trilogy chemistry paper 2
Total questions: 39
Worksheet time: 20mins
How is distilled water different to sea water?
it's a mixture
it's a formulation
it boils at 100 degrees C
it freezes over a range of temperatures
it is more salty
Why is distilling sea water to make drinking water expensive?
uses a lot of chemicals
it's slow
needs expensive equipment
takes a lot of energy
Give one way that CO2 emissions can be reduced when manufacturing a plastic bottle?
use recycled plastic
recycle the bottle
use thicker plastic
burn it afterwards
sell it locally
1 dm3 is equal to how many cm3 ?
100
500
1000
2000
If a Reversible Reaction is Exothermic one way what will it be the Other way?
Endothermic
Exothermic
What is Le Chatelier's Principle?
If you change the Conditions of a Reversible Reaction at Equilibrium the system will try to Counteract that change
If you change the Conditions of a Reversible Reaction at Equilibrium the system will Accelerate the Change
What happens to a Reversible Reaction when you increase the Temperature?
It Favours the Endothermic Reaction
It Favours the Exothermic Reaction
What happens to a Reversible Reaction when you increase the Pressure?
It Favours the reaction with Fewer molecules of Gas
It Favours the reaction with More molecules of Gas
What happens to a Reversible Reaction when you Increase the Concentration of the Products
It Produces more Reactants
It Produces more Products
What happens to a Reversible Reaction when you Increase the Concentration of the Reactants
It Produces more Reactants
It Produces more Products
Which two elements do Hydrocarbons Contain?
Hydrogen
Carbon
Oxygen
Nitrogen
What is the general formula for Alkanes?
CnH2n+2
CnH2n
What is the general formula for Alkenes?
CnH2n+2
CnH2n
How do you Calculate RF Values?
Distance Travelled by substance/ Distance travelled by solvent
Distance Travelled by Solvent/ Distance travelled by Substance
Which one is the test for Chlorine gas?
Bleaches damp Litmus Paper
Relights a glowing splint
Turns Limewater Cloudy
Creates a Pop when you hold a lit Splint near it
Which one is the test for Carbon Dioxide gas?
Bleaches damp Litmus Paper
Relights a glowing splint
Turns Limewater Cloudy
Creates a Pop when you hold a lit Splint near it
Which one is the test for Hydrogen gas?
Bleaches damp Litmus Paper
Relights a glowing splint
Turns Limewater Cloudy
Creates a Pop when you hold a lit Splint near it
What is a formulation?
Milk
A mixture designed for a purpose
Calculation
A random mixture
Which soluble gas is responsible for acid rain?
Hydrogen
Sulphur dioxide
Methane
Carbon dioxide
Which gas makes up 78% of our atmosphere?
Nitrogen
Oxygen
Carbon dioxide
Argon
Which TWO processes are most responsible for the reduction in carbon dioxide in Earth's early atmosphere?
Respiration
Photosynthesis
Combustion
Formation of the oceans
Which substance is used to test for the presence of double bonds (such as testing for alkenes)
Distilled water
Iodine
Limewater
Bromine water
Which of the following in NOT a property of catalysts.
They speed up reactions
They are expensive
They lower activation energy
They are not used up
They are specific
Fractional distillation separates the hydrocarbons in crude oil because they .....
Are different colours
Have different viscosities
Have different boiling points
Are flammable
Long chain hydrocarbons have ................. boiling points, so condense near the bottom of the fractionating column, because it is hotter there.
higher
lower
Which equation shows the correct formula for the cracking of dodecane (C12H26).
C12H26 > C8H20 + C4H6
C12H26 > C10H22 + C2H4
C12H26 > C5H13 + C5H13
C12H26 > C12H22 + 2H2
Which of these substances is NOT a formulation
paint
fertilisers
fuels
diamond
Which of these is NOT a greenhouse gas?
Hydrogen
Water vapour
Methane
Carbon dioxide
Incomplete combustion creates ......................... when fuels are burnt in a lack of oxygen.
Carbon dioxide
Carbon monoxide
Methane
Hydrogen
