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C2 Chemical Resources Revision Quiz (OCR Gateway) - Honywood School Flashcards | StudBud
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C2 Chemical Resources Revision Quiz (OCR Gateway) - Honywood School
C2 Chemical Resources Revision Quiz (OCR Gateway) - Honywood School
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Questions
30
Answers
1
Why do some people choose to live on the slopes of volcanoes?
There is no other space to live.
The soil is fairly acidic.
The soil is very fertile.
It gets renewed every so often.
2
What do manufacturers do
not
do to extract salt?
Solution mining.
From sea water.
Mining rock salt.
Through filtration.
3
Name the two substances that must be in contact with an iron nail to cause it to rust?
Oxygen and Hydrogen.
Oxygen and water.
Air and methane.
Water and salt.
4
Which part of the electrolysis cell produces hydrogen gas during electrolysis of brine?
Made in the solution.
Made at the cathode.
Made outside the solution.
Made at the anode.
5
Rusting is an example of an oxidation reaction. Explain why?
Iron is added to hydrogen.
Oxygen is taken away from the iron.
The iron gains electrons.
The iron loses electrons.
6
Which of the following is not in the N, P and K of fertilisers?
Phosphorus.
Nitrates.
Potassium.
Nitrogen.
7
What is the yield at 200 atmosphere and a temperature of 350 degrees?
36%
28%
45%
53%
8
Name the rock formed when molten rock erupts from a volcano and then cools down?
Magma.
Igneous.
Sedimentary.
Metamorphic.
9
Suggest a quick way of separating scrap aluminium and scrap steel?
Pick them out.
In water.
A magnet.
Filtration.
10
In the Haber process where does the hydrogen come from?
Air.
Natural gas and water.
Water.
Natural gas and methane.
11
What does electrolysis of brine need to make PVC?
Sodium Hydroxide.
Hydrogen.
Chlorine and sodium hydroxide.
Chlorine.
12
Which one do farmers not use fertilisers for?
To improve the yield.
To grow bigger crops.
To grow crops faster.
To protect them from bugs.
13
What happens to the yield as the temperature is increased in the Haber process?
Inverts.
Goes down.
Stays the same.
Goes up.
14
What is the following is
not
a use for brass?
Electrical circuits.
Name plates.
Musical instruments.
Fillings.
15
What effect does chlorine have on moist litmus paper?
It kills rats dead.
It bleaches moist litmus paper.
It turns red litmus paper blue.
It turns blue litmus paper red.
16
Limestone and marble are both forms of calcium carbonate. What causes one to become the other?
Heat and cooling.
Heat and pressure.
Heat.
Pressure.
17
Steel is an alloy composed mainly of iron. Why is iron less useful than steel?
It is less likely to corrode.
It has more properties.
It is less strong.
It is harder.
18
Give one use of sodium chloride in the home?
As an icicle.
As a finisher.
As a colourant.
As a preservative.
19
Explain why some people might think it is
not
important to recycle copper scrap?
Copper ore is a finite resource.
Less energy is needed to recycle from scrap.
Copper ore is found all over the earth's surface.
It needs lots of energy to extract it from ore.
20
What does electrolysis of brine produce, that can be used to make bleach?
Sodium Hydroxide only
Hydrogen only
Chlorine only
Chlorine and sodium hydroxide.
21
What
two
events take place along the boundaries of the plates?
Earthquakes.
Volcanoes erupting.
No volcanoes.
No earthquakes.
22
What is thermal decomposition?
Decomposition without heat.
It just decomposes over time.
Decomposition with heat.
Heat and composition.
23
What is the general equation for the reaction between acid and alkali?
Just salt.
Salt and hydrogen.
Salt, water and carbon dioxide.
Salt and water.
24
What does electrolysis of brine produce that can be used to make soap?
Chlorine and sodium hydroxide.
Sodium Hydroxide.
Chlorine.
Hydrogen.
25
What are the final products for the decomposition of limestone?
Slaked lime.
Slaked lime + water.
Calcium oxide + oxygen.
Calcium oxide + carbon dioxide.
26
Which of the following is
not
a stage in eutrophication?
The algae blocks out the light.
The fish need a limited supply of oxygen.
They use the oxygen in the water.
Causing other plants to die.
27
What is a composite material?
It relies on two different materials.
It relies on one different in different lengths.
It relies on one material but with different directions.
It relies on one material.
28
The diagram shows the earth's structure. Which part is mainly made up of iron?
The core.
The mantle.
The Crust.
The outer core.
29
What is an acid?
A solution containing OH-.
An acid turns litmus blue.
It has am pH of greater than 7.
A solution containing H+.
30
Why would a low yield
not
be possible?
The ammonia is made in sufficient quantity.
Unreacted gases can be recycled.
The cost of producing it is too high.
The reaction can be repeated many times.
