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Big iGCSE Coordinated Chemistry Quiz Flashcards | StudBud
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Big iGCSE Coordinated Chemistry Quiz
Big iGCSE Coordinated Chemistry Quiz
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Chemistry IGCSE Syllabus Quiz #chemistry #igcse
Flashcards
63 cards
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Questions
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Answers
1
Which of these is not a property of a transition metal?
Can be easily cut with a knife
Conductorof heat
Malleable
Ductile
2
What conditions need to be present for polymerisation to occur?
High pressure
High temperature
All of the above
Catalyst
3
Which of the following arrangement describes the electron arrangement of a calcium ion?
2.8.2
2.8.8
2.8
2.8.8.2
4
What is the gas test for ammonia?
Turns red litmus blue
Turns blue litmus red
Turns red litmus white
Turns blue litmus white
5
A chemical reaction can be identified by all of the following EXCEPT
Proton number changes
Electrons exchanged
New substance formed
Energy released
6
_______________ represents a loss of electrons in a chemical reaction
Equilibrium
Redox
Reduction
Oxidation
7
What are the products of incomplete combustion of an alkane?
CO2 and H2O
CO2 and H2
CO and H2O
CO and H2
8
What ion results in a flame test becoming purple?
K+
Li+
K2+
Li2+
9
Which of these is a product of metal hydroxide and acid reaction?
Hydrogen
Both of them
Oxygen
None of them
10
Which one of these statements is true about the blast furnace?
Carbon monoxide is added to reduce the iron oxide
Limestone is added to combine with excess CO2
A slag of iron oxide forms at the bottom of the furnace
Hot air oxidises the iron
11
What can farmers add to their fields to increase the pH
Universal Indicator
Peat
Sodium Hydroxide
Calcium Carbonate
12
What is formed when magnesium reacts with ethanoic acid?
Magnesium ethanoate and water
Magnesium ethane + water
Magnesium Ethaonate + Hydrogen
Magneisum ethane + Hydrogen
13
Which is the correct order of reactivity? (Most reactive first)
Zinc, iron, lead
Platinum, lead, gold
Magneiusm, calcium, aluminium
Aluminium, carbon, lithium
14
What is the gas test for chlorine?
Turns red litmus white
Turns red litmus blue
Turns blue litmus white
Turns blue litmus red
15
What substance is shown on the left of the diagram?
Sodium Chloride
Diamond
Graphite
Silica
16
What products are formed when a metal oxide reacts with an acid?
Carbonate and water.
salt and water
salt, water and carbon dioxide
salt only
17
To what group does the following organic compound belong?
Alcohols
Alkanes
Alkenes
Carboxylic acids
18
When you add bromine to an unsaturated molecule it...
Turns from brown to colourless
Turns from colourless to brown
Stays colourless
Stays brown
19
Below is a model of a molecule of C, H & O. How many atoms of each element are in the molecule?
B
D
A
C
20
To what group does the following organic compound belong?
Alkenes
Carboxylic acids
Alkanes
Alcohols
21
To what group does the following organic compound belong?
Carboxylic acids
Alkanes
Alkenes
Alcohols
22
What colour will silver nitrate solution turn in the presence of a chloride ion?
White
Colourless
Yellow
Cream
23
What is the oxidation state of Fe in FeCl
3
?
-3
+3
+2
-2
24
The amount of product formed per unit time is called
Time
Fission
Equilibrium
Rate
25
What is the oxidation state of Fe in Fe
2
O
3
?
+2
+8
+6
+3
26
When bonds are formed, energy is always ____________
Bought
Released
Controlled
Absorbed
27
Where do the longest chains come out in the fractional distillation column?
At the bottom
At the top
28
Which object is least likely to contain aluminum?
an airplane body
a hammer
a bicycle frame
a saucepan
29
Which is a property of noble gases?
Slightly reactive
Reactive
Pretty
Unreactive
30
In the reaction: Fe
2
O
3
+ 3C = 2Fe + 3CO
2
what has been reduced?
Iron
Carbon Dioxide
Iron Oxide
Carbon
31
A substance has a m.p. of 1000°C and conducts when solid - what kind of bonding is present?
Giant Covalent
Metallic
Simple Covalent
Ionic
32
An atom has 6 neutrons, 5 protons, and 4 electrons. It:
is charged.
has a mass of 15 amu
is neutral
is carbon (6 on periodic table).
33
What reagent would be used to distiguish between Fe
2+
ions and Fe
3+
ions?
NaOH
AgNO3
NH3
HCl
34
Thermal decomposition means...
The breakdown of a substance producing heat and CO2
The breakdown of a substance using heat
The breakdown of a substance using heat and O2
The breakdown of a substance producing heat
35
Which of the following elements would be found as a liquid at room temperature?
Rubidium
Both Mercury and Bromine
Bromine
Mercury
36
Why are metals malleable?
They have free electrons
They have free ions
They have a lattice structure of alternating + and - ions
They have layers which can slide over each other
37
The graph shows an ................ reaction
Eccentric
Exothermic
Endothermic
Activation
38
The proton number of helium is 2. What information does this give about helium?
It is a Group II element.
Its atom has two electrons.
Its atom is twice as heavy as a hydrogen atom.
Its molecule has two atoms.
39
What substance is shown in the centre of the diagram?
Diamond
Sodium Chloride
Silica
Graphite
40
You have a burning question about Chemistry revision... what can you do?!
Message the Google Classroom
Sit at home and cry because Miss Charlotte doesn´t care
Email Miss Charlotte
Come and find Miss Sinead 5 minutes before the Mock
41
When and why does sodium chloride conduct electricity?
Both when solid and liquid as the ions are free to move
Both when solid and liquid as the electrons are free to move
When liquid as the electrons are free to move
When liquid as the ions are free to move
42
Which of the following metals does not displace H
2
gas from dilute HCl or dilute H
2
SO
4
Cu
Al
Mg
Zn
43
Which is NOT a property of the substance shown on the right of the diagram?
High melting point
Good conductor of electricity
Transparent
Hard
44
A substance has a m.p. of 50°C and does not conduct - what kind of bonding is present?
Ionic
Metallic
Simple Covalent
Giant Covalent
45
What must you heat a sample with to check if it contains nitrate ions?
NH3 and Al foil
NH3 and Zn foil
NaOH and Al foil
NaOH and Zn foil
46
Which of the following would slow down the rate of a reaction?
smaller volume
smaller surface area
higher temperature
a catalyst
47
An ineffective molecular collision results in __________.
A faster reaction
A slower reaction
A new product
No reaction
48
In the reaction: Fe
2
O
3
+ 3C = 2Fe + 3CO
2
what is the reducing agent?
Iron
Carbon
Iron Oxide
Carbon Dioxide
49
Which of the following most directly determines what type of element an atom is?
Number of Neutrons
Number of Protons
Shape
Number of Electrons
50
What type of reaction is Respiration?
Double-displacement reaction
Decomposition Reaction
Synthesis reaction
Combustion reaction
51
The more reactive a metal is, the more stable its compounds will be
False
True
52
What changes when an ion is made from an atom?
The number of electrons only
The number of protons only
The number of neutrons only
The number of neutrons and protons
53
An isotope is an atom that has a different number of ______________
Electrons
Protons
Neutrons
Mass
54
Which physical change is taking place in a below mentioned picture?
Covalent Bonding
Evaporation
Condensation
Freezing
55
What conditions need to be present for polymerisation to occur
All of these
Catalyst
Low temperature
High pressure
56
BaF
2
is an example of..
Ionic Bond
Metallic Bond
Covalent bond
Noble Bond
57
Which of the following is not a fossil fuel?
Coal
Hydrogen
Petroleum
Oil
58
Which kind of polymerisation involves monomers which contain a double bond?
Addition
Synthetic
Natural
Condensation
59
What is a polymer?
A large chain made up of monomers
A very large molecule
A large chain made up of small atoms
A plastic
60
Which of these is the main source of sulphur dioxide that causes acid rain?
earthquake activity
nuclear power stations
burning fossil fuels
severe electrical storms
61
What happens to the boiling points of alkenes as they get bigger and why?
Decrease because there are less intermolecular bonds
Increase because there are more bonds
Increase because there are more intermolecular bonds
Decrease because there are less bonds
62
If an ion has a charge of +3, it has
gained 3 protons
become optimistic
lost 3 neutrons
lost 3 electrons
63
What is a hydrocarbon?
Something that contains hydrogen and carbon
Something that only contains hydrogen and carbon
An organic compound
An alkane
