Junior Cert Science - Chemistry - Fossil Fuels and Plastics
Multiple-choice quiz
For each question, click on the button beside your answer. If your answer is incorrect, you may try again.
You have 10 minutes to answer all questions.
Good luck!
What is the missing word in the following sentence? "A fuel is a substance that burns in _______________ to produce energy".
oxygen
nitrogen
carbon dioxide
methane
Which one of the following substances is not a good source of heat energy?
Water
Oil
Peat
Coal
Which one of the following is NOT a fossil fuel?
Uranium
Natural gas
Coal
Turf
Which TWO of the following were formed from animals and plants that once lived under the sea?
Crude oil
Natural gas
Timber
Coal
Of the following elements, which two are the main constituents of fossil fuels?
Carbon
Hydrogen
Silicon
Gold
Hydrocarbons are made of
Carbon and hydrogen
Carbon and oxygen
Hydrogen and oxygen
Hydrogen, carbon and nitrogen
Which one of the following gases is NOT a greenhouse gas?
Carbon dioxide
Methane
Water vapour
Hydrogen
With reference to the greenhouse effect, which one of the following statements is NOT correct?
Short wavelength heat rays from the sun penetrate the earth's atmosphere
Long wavelength heat rays reflected from the earth's surface cannot escape from the earth's atmosphere
The temperature of the earth is slowly increasing due to heat being trapped in its atmosphere.
The greenhouse effect is mainly caused by gases escaping from greenhouses and glasshouses
Which one of the following activities is most unlikely to contribute to Global Warming?
Increasing levels of carbon dioxide
Burning of fossil fuels
Cutting down of rainforests
Acid rain
Methane is a greenhouse gas. It is produced by
Emissions from dumps
Emissions from melting glaciers
The production of steel
Burning fossil fuels
Which greenhouse gas is caused by grazing cattle?
Methane
Carbon dioxide
Water vapour
Nitrogen
Which TWO of the following effects may most likely be caused by Global Warming?
Melting of the polar caps
Rising sea levels
Extinction of the panda bear
Increase in the earth's population
Which one of the following acids is formed when carbon dioxide mixes with clouds in the atmosphere?
Carbonic acid
Hydrochloric acid
Nitric acid
Sulfuric acid
pH can measure how acidic a substance is. The pH of acid rain is
7
Greater than 10
Between 7 and 10
Less than 6
Which one of the following does not contribute to acid rain?
Hydrogen peroxide
Carbon dioxide
Sulfur dioxide
The oxides of nitrogen
Which TWO of the following are caused by acid rain?
Defoliation of trees
Fish kills
Forest fires
Tsunamis
A soil sample is tested for its pH, and is found to have a value of 5.5. Which of the following substances is best added to the soil in order to neutralise it?
Lime
Citric acid
Diluted vinegar
Water
Which THREE of the following items would you most likely use when testing the pH of a soil sample?
Universal indicator
Filter paper
Test tube
Bunsen burner
Which one of the following would best reduce Global warming?
Drive cars faster so that there is less time spent on journeys
Use wind energy in generating electricity
Eat more organic food
Use unleaded petrol instead of diesal in car engines
What type of fuel consisting of hydrocarbons, was formed millions of years ago from the fossilised remains of plants and animals?
Fossil fuel
Nuclear fuel
Biofuel
Wood
From the following, select the correct word equation forthe burning of a fossil fuel.
Fossil fuel + oxygen -->carbon dioxide + water
Fossil fuel + carbon dioxide -->oxygen + water
Fossil fuel + water -->carbon dioxide + oxygen
Fossil fuel + nitrogen -->nitrogen oxide + oxygen
Which one of the following is not a constituent of acid rain?
Citric acid
Nitric acid
Carbonic acid
Sulfuric acid
The effects of acid may be reduced by
decreasing the sulfur content of fuels
burning more fossil fuels
burning coal only
recycling more plastic bottles
In the catalytic converter of the automobile, poisonous carbon monoxide is converted into
carbon dioxide
sulfur dioxide
oxygen
water vapour
In fractional distillation, crude oil is separated into fractions on the basis of their
boiling points
melting points
densities
colours
The breaking up of large molecules that are found in crude oil, into smaller molecules is called
cracking
distillation
filtration
refining
A substance that alters the rate of a chemical reaction without being used up in the reaction is known as a
catalyst
plastic
monomer
polymer
The process whereby many small molecules called monomers join together to form a much larger molecule is called
polymerisation
distillation
filtration
neutralisation
Which one of the following is NOT an advantage of plastics?
They can be made from salt and water
They are cheap to produce
They can be made into almost any shape
They do not corrode
Which one of the following is not a man-made plastic?
Silk
Polystyrene
Polythene
Nylon
A plastic that decomposes over a period of time is said to be
biodegradable
corrosive
flexible
a good insulator
Which one of the following is a man-made plastic?
Polystyrene
Sodium chloride
Silk
Wool
Which one of the following is NOT a property of plastics?
They can be moulded into many different shapes
They generally have low densities
They react readily with metals
They are good electrical insulators
Biodegradable plastics are broken down in the environment by
