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WorksheetsEdexcel iGCSE Extracting metals and Structure and bonding
Total questions: 45
Worksheet time: 23mins
Name
Class
Date
1.
How do chemists decide which method to use to extract a metal?
a)
Based on reactivity
b)
Based purely on cost
c)
Based on smell
d)
Based on reactions
2.
What reaction leads to the formation of carbon monoxide in the blast furnace?
a)
Carbon + oxygen
b)
Carbon + 2 oxygens
c)
Carbon dioxide + Carbon
d)
Carbon dioxide + Oxygen
3.
What is reduction?
a)
Removal of oxygen and loss of ions
b)
Removal of oxygen and gain of electrons
c)
Gain of oxygen and gain of ions
d)
Gain of oxygen and loss of ions
4.
In which reaction is iron reduced from iron oxide --> iron
a)
Iron oxide + carbon --> iron + carbon doxide
b)
Iron oxide + carbon dioxide --> Iron + carbon
c)
Iron oxide + carbon monoxide --> iron oxide + carbon dioxide
d)
Iron oxide + carbon monoxide --> Iron + carbon dioxide
5.
Aluminium is
a)
Strong and heavy
b)
Strong and light
c)
Weak and heavy
d)
Weak and light
6.
Iron is mainly used in...
a)
Construction as a alloy
b)
Power cables because its light
c)
Forks because it doesn't rust
d)
As a hip replacement because its light
7.
Whats the chemical name for limestone?
a)
Calcium bicarbonate
b)
Iron oxide
c)
Calcium carbonate
d)
CaGX7
8.
What is the common name for CaSiO3
a)
Hag
b)
Calcium Silicate
c)
Slat
d)
Slag
9.
What are x and y?
potassium, sodium, x, calcium, magnesium, y, zinc, iron, copper, silver and gold
potassium, sodium, x, calcium, magnesium, y, zinc, iron, copper, silver and gold
a)
Titanium and lithium
b)
Lithium and Cobalt
c)
Lithium and Aluminium
d)
Berylium and Aluminium
10.
If the metal is more reactive what do we see when it is added to acid?
a)
Less bubbles
b)
No bubbles
c)
More bubbles
d)
17 bubbles exactly
11.
Ca2+ --> Ca.
This is...
This is...
a)
Oxidation because electrons are gained
b)
Reduction because electrons are gained
c)
Oxidation because oxygen is gained
d)
Reduction because oxygen is lost
12.
CuO + Mg --> MgO + Cu
Copper has been
Copper has been
a)
Oxidised because electrons are gained
b)
Reduced because electrons are lost
c)
Oxidised because oxygen is gained
d)
Reduced because oxygen is lost
13.
Zn --> Zn2+
Zinc has been
Zinc has been
a)
Oxidised because electrons are gained
b)
Reduced because electrons are lost
c)
Oxidised because oxygen is gained
d)
Reduced because oxygen is lost
14.
Copper Sulfate + Zinc --> Zinc Sulfate + Copper
Zinc is the...?
Zinc is the...?
a)
Reducing agent
b)
Oxidising agent
15.
Copper Sulfate + Zinc --> Zinc Sulfate + Copper
Copper Sulfate is the...?
Copper Sulfate is the...?
a)
Reducing agent
b)
Oxidising agent
16.
For something to rust it needs
a)
Water
b)
Oxygen
c)
Oxygen and water
d)
Oxygen, water and there MUST be salt
17.
What would you use to protect a fence from rust?
a)
Paint
b)
Grease/ oil
c)
A plastic cover
d)
Galvanising
18.
What would you use to protect a door hinge from rust?
a)
Paint
b)
Grease/ oil
c)
A plastic cover
d)
Galvanising
19.
What would you use to protect an ancient metal sign from rust?
a)
Paint
b)
Grease/ oil
c)
A plastic cover
d)
Galvanising
20.
What would you use to protect a ship from rust?
a)
Paint
b)
Grease/ oil
c)
A plastic cover
d)
Galvanising
21.
What would you use to protect an oil rig from rust?
a)
Paint
b)
Grease/ oil
c)
A plastic cover
d)
Galvanising
22.
What would you use to protect bike chain from rust?
a)
Paint
b)
Grease/ oil
c)
A plastic cover
d)
Galvanising
23.
We use zinc for the sacrificial protection of iron because...
a)
It is more reactive so rusts less easily
b)
It is less reactive so steals electrons
c)
It is more reactive and rusts more easily than iron
d)
It is more reactive and looks better
24.
We replace the zinc panels regularly because
a)
They rust and wear away
b)
They start to look bad
c)
To give iron a change to oxidise
d)
They get old
25.
An ion is an atom that has
a)
Gained or lost
b)
Gained or lost an electron
c)
Gained an electron
d)
Lost an electron
26.
All ions have
a)
Postive
b)
Negative
c)
A charge
d)
Electrons
27.
Type of bonding between a metal and non-metal is
a)
Covalent
b)
Metallic
c)
Ionic
d)
Intermolecular
28.
Type of bonding between a metal and metal is
a)
Covalent
b)
Metallic
c)
Ionic
d)
Intermolecular
29.
Type of bonding between a non-metal and non-metal is
a)
Covalent
b)
Metallic
c)
Ionic
d)
Intermolecular
30.
Na+ and Cl-are held together by...
a)
strong electrostatic attraction between similarly charged ions
b)
strong electrostatic attraction between oppositely charged ions
c)
weak electrostatic attraction between oppositely charged ions
d)
weak electrostatic attraction between similarly charged ions
31.
Ionic compounds have a high melting and boiling point because there are
a)
strong electrostatic attraction between similarly charged ions
b)
strong electrostatic attraction between oppositely charged ions
c)
weak electrostatic attraction between oppositely charged ions
d)
weak electrostatic attraction between similarly charged ions
32.
We can describe the structure of NaCl as...
a)
A giant covalent structure
b)
A metallic structure
c)
A lattice
d)
A giant molecule
33.
We can describe the structure of diamond as...
a)
A giant covalent structure
b)
A metallic structure
c)
A lattice
d)
A giant molecule
34.
Covalent molecules...
a)
Share electrons
b)
Donate electrons
c)
Take electrons
d)
Lose electrons
35.
In a covalent bond there is a strong attraction between...
a)
Hydrogen and Chlorine
b)
Cl and Cl
c)
Each covalent molecule
d)
Nuclei of the atoms and the shared electrons
36.
O2 has a double bond. How many dots and crosses should be in the middle?
a)
1 dot 1 cross
b)
2 dots 2 crosses
c)
1 dot 2 corosses
d)
3 dots 3 crosses
37.
For the bonding in nitrogen how many dots and crosses should be in the middle?
a)
1 dot 1 cross
b)
2 dots 2 crosses
c)
1 dot 2 corosses
d)
3 dots 3 crosses
38.
Simple molecular structure have low melting and boiling points and therefore are
a)
Solids
b)
Liquids
c)
Gases
d)
Liquids and gases
39.
Simple molecular structure have low melting and boiling points because
a)
They do...durh
b)
Strong forces between molecules
c)
relatively weak forces between the molecules
d)
Weak forces in the middle
40.
Ionic lattices have high melting and boiling points and therefore are
a)
Solids
b)
Liquids
c)
Gases
d)
Liquids and gases
41.
Diamond is used for
a)
Cutting
b)
Lubricant
c)
Building
42.
Graphite is used for
a)
Cutting
b)
Lubricant
c)
Building
43.
Metals conduct electricity because...
a)
Ions are free to move
b)
they have delocal eletrodes
c)
the have delocalised electrons
d)
Cheese
44.
Describe a metal
a)
Many circles and some electrons
b)
Many positive ions
c)
Tiny structure of positive ions surrounded by a sea of delocalised electrons
d)
Giant structure of positive ions surrounded by a sea of delocalised electrons
45.
Why can we bend metals?
a)
The ions are arranged in layers and can slide
b)
The ions are arranged in columns and can glide
c)
The ions are arranged neatly and hide
d)
The ions are available to move
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