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WorksheetsC4 AQA KKI
Total questions: 148
Worksheet time: 49mins
Name
Class
Date
1.
What pH do acids have?
a)
0 to 6
b)
7
c)
8 to 14
d)
15
2.
What pH do alkalis have?
a)
0 to 6
b)
7
c)
8 to 14
d)
15
3.
What pH do bases have?
a)
0 to 6
b)
7
c)
8 to 14
d)
15
4.
What colour to strong acids go in universal indicator?
a)
Red
b)
Yellow
c)
Green
d)
Blue
5.
What colour to weak acids go in universal indicator?
a)
Red
b)
Yellow
c)
Green
d)
Blue
6.
What colour to strong alkalis go in universal indicator?
a)
Red
b)
Purple
c)
Green
d)
Blue
7.
What colour to weak alkalis go in universal indicator?
a)
Red
b)
Yellow
c)
Green
d)
Blue
8.
What colour to neutral solutions go in universal indicator?
a)
Red
b)
Yellow
c)
Green
d)
Blue
9.
What ions do acids form in water?
a)
H+
b)
OH-
c)
Na+
d)
Cl-
10.
What ions do alkalis form in water?
a)
H+
b)
OH-
c)
Na+
d)
Cl-
11.
What is produced in a neutralisation reaction?
a)
Salt
b)
Acid
c)
Alkali
d)
Carbon dioxide
12.
What is produced in a neutralisation reaction?
a)
Water
b)
Acid
c)
Alkali
d)
Carbon dioxide
13.
A stronger acid will
a)
ionises completely in water
b)
ionises partially in water
c)
doesn’t ionise in water
14.
pH is a measurement of
a)
Concentration of H+ ions
b)
Concentration of Cl- ions
c)
How colourful it is
15.
Which of these is not an acid?
a)
Citric
b)
Hydrochloric
c)
Sulfuric
d)
Nitric
e)
Sodium hydroxide
16.
Which of these is an alkali?
a)
Citric
b)
Hydrochloric
c)
Sulfuric
d)
Nitric
e)
Sodium hydroxide
17.
If a base is soluble in water it is called a
a)
Base
b)
Alkali
c)
Acid
d)
Neutral
18.
What salts are made if you use nitric acid?
a)
Nitrate salts
b)
Sulfuric salts
c)
Chloride salts
d)
Citrate salts
19.
What salts are made if you use hydrochloric acid?
a)
Nitrate salts
b)
Sulfuric salts
c)
Chloride salts
d)
Citrate salts
20.
What salts are made if you use sulfuric acid?
a)
Nitrate salts
b)
Sulfuric salts
c)
Chloride salts
d)
Citrate salts
21.
What gas is produced when you react a metal with an acid?
a)
Carbon dioxide
b)
Hydrogen
c)
Helium
d)
Oxygen
22.
What gas is produced when you react a metal carbonate with an acid?
a)
Carbon dioxide
b)
Hydrogen
c)
Helium
d)
Oxygen
23.
How do you isolate a soluble salt?
a)
Evaporate off the water
b)
Filter it
c)
Chromotography
24.
The reactivity of a metal is a measurement of
a)
How easily they loose an electron
b)
How easily they gain an electron
c)
How easily they loose a proton
d)
How easily they gain an proton
25.
Metals always form
a)
Positive ions
b)
Negative ions
26.
When metals reacts with water what do they produce?
a)
Metal oxide
b)
Carbon dioxide
c)
Metal hydroxide
27.
Which of these metals is the most reactive with water?
a)
Copper
b)
Gold
c)
Magnesium
d)
Sodium
28.
What is the name of the reaction when carbon displaces a less reactive metal from its compound
a)
Reduction
b)
Oxidation
c)
Thermal decomposition
d)
Combustion
29.
Oxidation is
a)
Loss of electrons
b)
Gain of electrons
30.
Reduction is
a)
Loss of electrons
b)
Gain of electrons
31.
Oxidation is
a)
Gain of oxygen
b)
Loss of oxygen
32.
Reduction is
a)
Gain of oxygen
b)
Loss of oxygen
33.
Which metals can be reduced with carbon?
a)
Those with a lower reactivity than carbon
b)
Those with a higher reactivity than carbon
34.
What do we call metal oxides?
a)
Ores
b)
Pure metals
c)
Alloys
35.
What is a REDOX reaction?
a)
When reduction and oxidation happen at the same time
b)
When neither reduction or oxidation happen
c)
When only oxidation happens
d)
When only reduction happens
36.
What happens in a displacement reaction?
a)
A more reactive metal will displace a less reactive metal from its compounds
b)
A less reactive metal will displace a more reactive metal from its compounds
c)
A more reactive metal will displace a less reactive metal
37.
When an atom loses an electron it become a
a)
Postive ion
b)
Negative ion
c)
Positive atom
d)
Negative atom
38.
When an atom gains an electron it become a
a)
Postive ion
b)
Negative ion
c)
Positive atom
d)
Negative atom
39.
What is it called when electricity is used to split up compounds?
a)
Electrolysis
b)
Thermal decomposition
c)
Oxidation
d)
Combustion
40.
What is the name of negative electrode?
a)
Cathode
b)
Anode
c)
Cation
d)
Anion
41.
What is the name of positive electrode?
a)
Cathode
b)
Anode
c)
Cation
d)
Anion
42.
What is the name of negative ion?
a)
Cathode
b)
Anode
c)
Cation
d)
Anion
43.
What is the name of the positive ions?
a)
Cathode
b)
Anode
c)
Cation
d)
Anion
44.
What is the name of the solution used in electrolysis that conducts electricity?
a)
Electrolysis
b)
Electrolyte
c)
Electric solution
45.
Which ions go to the cathode?
a)
Positive ions
b)
Negative ions
46.
Which ions go to the anode?
a)
Positive ions
b)
Negative ions
47.
Which ions go to the cathode?
a)
Metal ions
b)
Non metal ions
48.
Which ions go to the anode?
a)
Metal ions
b)
Non metal ions
49.
When an ion gets the cathode what happens to it?
a)
Gains electrons
b)
Loses electrons
50.
When an ion gets the anode what happens to it?
a)
Gains electrons
b)
Loses electrons
51.
When an ion gets the cathode what happens to it?
a)
It gets reduced
b)
It gets oxidised
52.
When an ion gets the anode what happens to it?
a)
It gets reduced
b)
It gets oxidised
53.
Why do electrolytes conduct electricity?
a)
Free ions that can carry the charge
b)
Free electrons
c)
Atoms can flow
54.
What is added to the electrolysis of aluminium oxide to lower the melting point?
a)
Cryolite
b)
Atoms
c)
Heat
d)
Clay
55.
Why is cryolite added to the electrolysis of aluminium oxide?
a)
Lowers the melting point
b)
Speeds up the process
c)
Makes it work
56.
Which electrode does the aluminium ions go to?
a)
Cathode
b)
Anode
57.
Why do the anodes need replacing in the electrolysis of aluminium oxide?
a)
Oxygen ions are attracted to the anode and react with the carbon anodes to produce carbon dioxide
b)
they dissolve
c)
They break down
58.
What are the anodes made of in the electrolysis of aluminium oxide?
a)
Carbon
b)
Metal
c)
Wires
59.
What are the anodes made of in the electrolysis of aluminium oxide?
a)
Graphite
b)
Metal
c)
Wires
60.
Why to positive ions go to the cathode?
a)
The cathode is negative and opposite charges attract
b)
The cathode is positive and similar charges attract
c)
The cathode is negative and opposite charges repel
d)
The cathode is positive and similar charges repel
61.
Why cant solid ionic compounds conduct electricity?
a)
Ions are not free to move
b)
To rigid
c)
To much energy
62.
Which ions are more likely to go the cathode?
a)
More reactive metal
b)
Less reactive metal
63.
Which ions are more likely to go the anode?
a)
Halogens
b)
Hydrogen
c)
Hydroxide
64.
How many electrons will each hydrogen atom pick up when it gets to the cathode?
a)
1
b)
2
c)
3
d)
4
65.
How many electrons will each aluminium atom pick up when it gets to the cathode?
a)
1
b)
2
c)
3
d)
4
66.
How many electrons will each copper atom pick up when it gets to the cathode?
a)
1
b)
2
c)
3
d)
4
67.
How do you test for oxygen?
a)
Relights a glowing split
b)
Sqeaky pop
c)
Bleaches damp litmus paper
d)
Turns limewater cloudy
68.
How do you test for hydrogen?
a)
Relights a glowing split
b)
Sqeaky pop
c)
Bleaches damp litmus paper
d)
Turns limewater cloudy
69.
How do you test for chlorine?
a)
Relights a glowing split
b)
Sqeaky pop
c)
Bleaches damp litmus paper
d)
Turns limewater cloudy
70.
How do you test for carbon dioxide?
a)
Relights a glowing split
b)
Sqeaky pop
c)
Bleaches damp litmus paper
d)
Turns limewater cloudy
71.
Relights a glowing split
a)
Oxygen
b)
Hydrogen
c)
Carbon dioxide
d)
Chlorine
72.
Sqeaky pop
a)
Oxygen
b)
Hydrogen
c)
Carbon dioxide
d)
Chlorine
73.
Bleaches damp litmus paper
a)
Oxygen
b)
Hydrogen
c)
Carbon dioxide
d)
Chlorine
74.
Turns limewater cloudy
a)
Oxygen
b)
Hydrogen
c)
Carbon dioxide
d)
Chlorine
75.
What pH do acids have?
a)
0 to 6
b)
7
c)
8 to 14
d)
15
76.
What pH do alkalis have?
a)
0 to 6
b)
7
c)
8 to 14
d)
15
77.
What pH do bases have?
a)
0 to 6
b)
7
c)
8 to 14
d)
15
78.
What colour to strong acids go in universal indicator?
a)
Red
b)
Yellow
c)
Green
d)
Blue
79.
What colour to weak acids go in universal indicator?
a)
Red
b)
Yellow
c)
Green
d)
Blue
80.
What colour to strong alkalis go in universal indicator?
a)
Red
b)
Purple
c)
Green
d)
Blue
81.
What colour to weak alkalis go in universal indicator?
a)
Red
b)
Yellow
c)
Green
d)
Blue
82.
What colour to neutral solutions go in universal indicator?
a)
Red
b)
Yellow
c)
Green
d)
Blue
83.
What ions do acids form in water?
a)
H+
b)
OH-
c)
Na+
d)
Cl-
84.
What ions do alkalis form in water?
a)
H+
b)
OH-
c)
Na+
d)
Cl-
85.
What is produced in a neutralisation reaction?
a)
Salt
b)
Acid
c)
Alkali
d)
Carbon dioxide
86.
What is produced in a neutralisation reaction?
a)
Water
b)
Acid
c)
Alkali
d)
Carbon dioxide
87.
A stronger acid will
a)
ionises completely in water
b)
ionises partially in water
c)
doesn’t ionise in water
88.
pH is a measurement of
a)
Concentration of H+ ions
b)
Concentration of Cl- ions
c)
How colourful it is
89.
Which of these is not an acid?
a)
Citric
b)
Hydrochloric
c)
Sulfuric
d)
Nitric
e)
Sodium hydroxide
90.
Which of these is an alkali?
a)
Citric
b)
Hydrochloric
c)
Sulfuric
d)
Nitric
e)
Sodium hydroxide
91.
If a base is soluble in water it is called a
a)
Base
b)
Alkali
c)
Acid
d)
Neutral
92.
What salts are made if you use nitric acid?
a)
Nitrate salts
b)
Sulfuric salts
c)
Chloride salts
d)
Citrate salts
93.
What salts are made if you use hydrochloric acid?
a)
Nitrate salts
b)
Sulfuric salts
c)
Chloride salts
d)
Citrate salts
94.
What salts are made if you use sulfuric acid?
a)
Nitrate salts
b)
Sulfuric salts
c)
Chloride salts
d)
Citrate salts
95.
What gas is produced when you react a metal with an acid?
a)
Carbon dioxide
b)
Hydrogen
c)
Helium
d)
Oxygen
96.
What gas is produced when you react a metal carbonate with an acid?
a)
Carbon dioxide
b)
Hydrogen
c)
Helium
d)
Oxygen
97.
How do you isolate a soluble salt?
a)
Evaporate off the water
b)
Filter it
c)
Chromotography
98.
The reactivity of a metal is a measurement of
a)
How easily they loose an electron
b)
How easily they gain an electron
c)
How easily they loose a proton
d)
How easily they gain an proton
99.
Metals always form
a)
Positive ions
b)
Negative ions
100.
When metals reacts with water what do they produce?
a)
Metal oxide
b)
Carbon dioxide
c)
Metal hydroxide
101.
Which of these metals is the most reactive with water?
a)
Copper
b)
Gold
c)
Magnesium
d)
Sodium
102.
What is the name of the reaction when carbon displaces a less reactive metal from its compound
a)
Reduction
b)
Oxidation
c)
Thermal decomposition
d)
Combustion
103.
Oxidation is
a)
Loss of electrons
b)
Gain of electrons
104.
Reduction is
a)
Loss of electrons
b)
Gain of electrons
105.
Oxidation is
a)
Gain of oxygen
b)
Loss of oxygen
106.
Reduction is
a)
Gain of oxygen
b)
Loss of oxygen
107.
Which metals can be reduced with carbon?
a)
Those with a lower reactivity than carbon
b)
Those with a higher reactivity than carbon
108.
What do we call metal oxides?
a)
Ores
b)
Pure metals
c)
Alloys
109.
What is a REDOX reaction?
a)
When reduction and oxidation happen at the same time
b)
When neither reduction or oxidation happen
c)
When only oxidation happens
d)
When only reduction happens
110.
What happens in a displacement reaction?
a)
A more reactive metal will displace a less reactive metal from its compounds
b)
A less reactive metal will displace a more reactive metal from its compounds
c)
A more reactive metal will displace a less reactive metal
111.
When an atom loses an electron it become a
a)
Postive ion
b)
Negative ion
c)
Positive atom
d)
Negative atom
112.
When an atom gains an electron it become a
a)
Postive ion
b)
Negative ion
c)
Positive atom
d)
Negative atom
113.
What is it called when electricity is used to split up compounds?
a)
Electrolysis
b)
Thermal decomposition
c)
Oxidation
d)
Combustion
114.
What is the name of negative electrode?
a)
Cathode
b)
Anode
c)
Cation
d)
Anion
115.
What is the name of positive electrode?
a)
Cathode
b)
Anode
c)
Cation
d)
Anion
116.
What is the name of negative ion?
a)
Cathode
b)
Anode
c)
Cation
d)
Anion
117.
What is the name of the positive ions?
a)
Cathode
b)
Anode
c)
Cation
d)
Anion
118.
What is the name of the solution used in electrolysis that conducts electricity?
a)
Electrolysis
b)
Electrolyte
c)
Electric solution
119.
Which ions go to the cathode?
a)
Positive ions
b)
Negative ions
120.
Which ions go to the anode?
a)
Positive ions
b)
Negative ions
121.
Which ions go to the cathode?
a)
Metal ions
b)
Non metal ions
122.
Which ions go to the anode?
a)
Metal ions
b)
Non metal ions
123.
When an ion gets the cathode what happens to it?
a)
Gains electrons
b)
Loses electrons
124.
When an ion gets the anode what happens to it?
a)
Gains electrons
b)
Loses electrons
125.
When an ion gets the cathode what happens to it?
a)
It gets reduced
b)
It gets oxidised
126.
When an ion gets the anode what happens to it?
a)
It gets reduced
b)
It gets oxidised
127.
Why do electrolytes conduct electricity?
a)
Free ions that can carry the charge
b)
Free electrons
c)
Atoms can flow
128.
What is added to the electrolysis of aluminium oxide to lower the melting point?
a)
Cryolite
b)
Atoms
c)
Heat
d)
Clay
129.
Why is cryolite added to the electrolysis of aluminium oxide?
a)
Lowers the melting point
b)
Speeds up the process
c)
Makes it work
130.
Which electrode does the aluminium ions go to?
a)
Cathode
b)
Anode
131.
Why do the anodes need replacing in the electrolysis of aluminium oxide?
a)
Oxygen ions are attracted to the anode and react with the carbon anodes to produce carbon dioxide
b)
they dissolve
c)
They break down
132.
What are the anodes made of in the electrolysis of aluminium oxide?
a)
Carbon
b)
Metal
c)
Wires
133.
What are the anodes made of in the electrolysis of aluminium oxide?
a)
Graphite
b)
Metal
c)
Wires
134.
Why to positive ions go to the cathode?
a)
The cathode is negative and opposite charges attract
b)
The cathode is positive and similar charges attract
c)
The cathode is negative and opposite charges repel
d)
The cathode is positive and similar charges repel
135.
Why cant solid ionic compounds conduct electricity?
a)
Ions are not free to move
b)
To rigid
c)
To much energy
136.
Which ions are more likely to go the cathode?
a)
More reactive metal
b)
Less reactive metal
137.
Which ions are more likely to go the anode?
a)
Halogens
b)
Hydrogen
c)
Hydroxide
138.
How many electrons will each hydrogen atom pick up when it gets to the cathode?
a)
1
b)
2
c)
3
d)
4
139.
How many electrons will each aluminium atom pick up when it gets to the cathode?
a)
1
b)
2
c)
3
d)
4
140.
How many electrons will each copper atom pick up when it gets to the cathode?
a)
1
b)
2
c)
3
d)
4
141.
How do you test for oxygen?
a)
Relights a glowing split
b)
Sqeaky pop
c)
Bleaches damp litmus paper
d)
Turns limewater cloudy
142.
How do you test for hydrogen?
a)
Relights a glowing split
b)
Sqeaky pop
c)
Bleaches damp litmus paper
d)
Turns limewater cloudy
143.
How do you test for chlorine?
a)
Relights a glowing split
b)
Sqeaky pop
c)
Bleaches damp litmus paper
d)
Turns limewater cloudy
144.
How do you test for carbon dioxide?
a)
Relights a glowing split
b)
Sqeaky pop
c)
Bleaches damp litmus paper
d)
Turns limewater cloudy
145.
Relights a glowing split
a)
Oxygen
b)
Hydrogen
c)
Carbon dioxide
d)
Chlorine
146.
Sqeaky pop
a)
Oxygen
b)
Hydrogen
c)
Carbon dioxide
d)
Chlorine
147.
Bleaches damp litmus paper
a)
Oxygen
b)
Hydrogen
c)
Carbon dioxide
d)
Chlorine
148.
Turns limewater cloudy
a)
Oxygen
b)
Hydrogen
c)
Carbon dioxide
d)
Chlorine
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