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GCSE Chemistry 6.1 (Gateway) Review Flashcards | StudBud
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GCSE Chemistry 6.1 (Gateway) Review
GCSE Chemistry 6.1 (Gateway) Review
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Mixture of questions to aid 6.1 revision.
Flashcards
20 cards
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Practice quiz
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Questions
20
Answers
1
A high temperature is used in the Contact Process despite the lower yield, because...
The SO3 is better quality
The yield is only slightly lower
The extra energy cost is small
The rate is faster so it is a compromise
2
The hydration of ethene uses a phosphoric acid catalyst.
True
False
3
Bioleaching and phytoextraction are useful as they can...
Are faster than traditional mining techniques
Be used on low grade ores
Does not produce any toxic substances
are very cheap
4
The Contact Process is used to make...
Ammonia
Sulphuric acid
Glue
Nitric acid
5
To make ammonium sulphate, ammonia solution should be reacted with nitric acid.
False
True
6
During the elctrolysis of aluminium, the correct equation at the cathode is...
Al --> Al3+ + 3e-
Al3+ + 3e- --> Al
2Al + 3O2 --> 2Al2O3
Al + 3e- --> Al3-
7
Which one is
NOT
a reason for recycling?
Conserves raw materials
Better for the environment
Saves money
Difficult to find space for all the bins
8
Which one is
not
a use for ammonia?
Refrigerant/coolant
Sterilising drinking water
Fertiliser
Making nitric acid
9
The fermentation of glucose to produce ethanol is...
Does not make any by-products
A batch process
Has a high yield, about 96%
Is fast
10
LCA stands for...
Long Course Actuary
Low Carbon Asset
Life Cycle Assessment
Life Choice Accountability
11
A material that is made from two or more materials combined together is called...
Alloy
Plastic
Polymer
Composite
12
Iron is produced in a blast furnace using coke which reduces the ore to pure carbon and which other by product?
Iron carbonate
Calcium silicate
Iron tricarbide
Carbon dioxide
13
The correct industrial conditions for the Haber Process are...
100atm, 450oC, Fe catalyst
200atm, 450oC, Fe catalyst
50atm, 100oC, Pt catalst
200 atm, 600oC, Fe catalyst
14
Which method would
NOT
prevent iron from rusting?
Rubbing the surface with salt water
Galvanising
Painting
Sacrificial anodes on a hull of a boat
15
When Carbon is used to extract copper from its ore, carbon is acting as...
An inhibitor
A catalyst
An oxidising agent
A reducing agent
16
Which statement is correct regarding alloys?
They do not have regular structures which makes them stronger
They are weaker than pure metals
They have higher melting points than pure metals
They corrode faster than pure metals
17
Which one is
NOT
the correct name for a metals ore?
Platinum -Platinate
Aluminium- Bauxite
Iron- Haematite
Copper- Malachite
18
Brass is an alloy of...
Gold and silver
Tin and zinc
Tin and silver
Lead and iron
19
The three essential elements plants need are...
K, P, Na
K, F, N
K, N, P
N, K, Ph
20
Modern buildings use aluminium in their design. It has to be extracted using electrolysis because...
It is less reactive than carbon
It has a high melting point
It only occurs in low quantities in its ore
It is more reactive than carbon
