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Leah Firmstone
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GCSE Chemistry Quiz on C1 Quiz, created by Leah Firmstone on 29/10/2015.

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Leah Firmstone
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C1 Quiz

Question 1 of 14 Question 1 of 14

3

Click on each orange point and write the correct answer.

Label the pie chart with the names of each element found in air.

1
2
3

Explanation

Question 2 of 14 Question 2 of 14

2

Which gases do today's scientists think the early atmosphere of the Earth was made up of?

Select one or more of the following:

  • carbon dioxide

  • ammonia

  • water vapour

  • methane

Explanation

Question 3 of 14 Question 3 of 14

1

Four billion years ago the Earth''s atmosphere was hot and much thicker than it is now. Gradually the temperature fell and most of the water vapour condensed, falling as rain and forming the oceans. About 3 billion years ago life began in the form of tiny bacteria-like creatures. They began to use the carbon dioxide from the air and light from the Sun to grow. This process of photosynthesis removed CO2 from the air and produced oxygen as a waste product. Gradually the amount of oxygen in the air increased and animals evolved that were able to breathe the oxygen.

Select one of the following:

  • True
  • False

Explanation

Question 4 of 14 Question 4 of 14

2

Which processes removed carbon dioxide from the air to leave the composition as it is today?

Select one or more of the following:

  • Photosynthesis

  • Respiration

  • Dissolving into oceans

Explanation

Question 5 of 14 Question 5 of 14

1

Particulates are tiny bits of solid that float in the air.
Choose a natural source of particulates.

Select one of the following:

  • volcanoes

  • deforestation

  • burning fossil fuels

Explanation

Question 6 of 14 Question 6 of 14

1

What is a pollutant?

Select one of the following:

  • A substance that is harmful to health or the environment and which is produced by human activity.

  • The end result of a chemical reaction.

Explanation

Question 7 of 14 Question 7 of 14

1

Which of the following shows an example of a positive correlation?

Select one of the following:

  • The higher the levels of smog, the lower the air quality.

  • Where the amount of pollutants in the air from burning fossil fuels is high there are more deaths from asthma, and heart and lung diseases.

Explanation

Question 8 of 14 Question 8 of 14

1

Choose the correct equation for the combustion of a hydrocarbon in air.

Select one of the following:

  • hydrocarbon + oxygen -> carbon dioxide + water (+energy)

  • hydrocarbon + oxygen -> carbon dioxide (+energy)

  • hydrocarbon + oxygen -> carbon + water (+ energy)

Explanation

Question 9 of 14 Question 9 of 14

1

An oxidation reaction is a reaction where oxygen is lost.

Select one of the following:

  • True
  • False

Explanation

Question 10 of 14 Question 10 of 14

1

Mass is never lost or gained in chemical reactions. We say that mass is always conserved. In other words, the total mass at the end of the reaction is equal to the total mass of the reactants at the beginning.

Select one of the following:

  • True
  • False

Explanation

Question 11 of 14 Question 11 of 14

6

Scientists have found that nitrogen monoxide is formed is and engines when nitrogen and oxygen in the air are heated to about degrees celsius. When the nitrogen is released into the atmosphere it cools down then reacts with more to form nitrogen dioxide.
N2 + O2 -> 2
2NO + 2 -> 2NO2

Drag and drop to complete the text.

    oxygen
    NO
    furnaces
    O
    1000
    monoxide

Explanation

Question 12 of 14 Question 12 of 14

2

Which two gases react with oxygen and water in the atmosphere to produce acid rain?

Select one or more of the following:

  • sulphur dioxide

  • nitrogen dioxide

  • carbon monoxide

Explanation

Question 13 of 14 Question 13 of 14

9

There are two methods of gas desulphurisation. The most common method uses oxide (lime) which is obtained by heating . The lime is mixed with water to make an alkaline . Sulphur dioxide is washed or '' out of the flue gases with water and reacts with the lime. The compound formed is reacted with in the air to make calcium sulphate, which can be sold to make plaster for walls, helping to pay for the process.
The second method uses seawater (naturally slightly alkaline) to react with the sulphur dioxide and act as a . The product is , giving off carbon dioxide. A volume of seawater has to be used for this process, however.

Drag and drop to complete the text.

    coolant
    slurry
    large
    flue
    oxygen
    limestone
    oxidised
    scrubbed
    calcium

Explanation

Question 14 of 14 Question 14 of 14

1

What is a catalytic converter?

Select one of the following:

  • A conversion table with the rates of different catalysed reactions.

  • A platinum catalyst that makes pollutant gases react with each other.

Explanation

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