Free Printable Third Form Question Bank

1.

What is the relative mass of a neutron?

a)

1

b)

-1

c)

0

d)

1/2000

2.

What is the relative mass of an electron?

a)

1/2000

b)

1/200

c)

0

d)

-1

3.

How many atoms are there in a molecule of ethanol (C₂H₆O)

a)

9

b)

6

c)

2

d)

8

4.

What is the definition of an element?

a)

Substances that can’t be split into anything simpler by chemical means

b)

A substance made up of only one atom

c)

Two or more different atoms chemically bonded

d)

Two or more different substances not chemically combined

5.

What is the relative atomic mass of lithium?

a)

7

b)

2

c)

4

d)

14

6.

What type of substance is shown here?

a)

Mixture of elements

b)

Pure element

c)

Pure compound

d)

Mixture of compounds

7.

What type of structure is shown here?

a)

Giant Lattice

b)

Atom

c)

Molecule

8.

What best describes this diagram?

a)

Molecules of an element

b)

Atoms of an element

c)

Molecules of a compound

d)

Ions of an element

9.

What best describes this diagram?

a)

Molecules of a compound

b)

Molecules of an element

c)

Atoms of an element

d)

A lattice of a compound

10.

To the nearest hundred, how many elements are there on the periodic table?

a)

100

b)

200

c)

300

d)

400

11.

What word best describes ammonia, NH₃

a)

Compound

b)

Metal

c)

Element

d)

Mixture

12.

What is the radius of an atom in nm?

a)

0.1 nm

b)

1.0 nm

c)

0.00001 nm

d)

0.001 nm

13.

Which description best describes an isotope?

a)

Same number of protons, different number of neutrons

b)

Same number of protons, different number of electrons

c)

Same number of neutrons, different number of protons

d)

Same number of electrons, different number of neutrons

14.

Which of the following is a property of a mixture?

a)

Can be separated easily

b)

Have definite melting points

c)

Cannot be separated easily

d)

Have a fixed composition

15.

How many times heavier is a proton in comparison to a neutron?

a)

They are the same

b)

2

c)

2000

d)

4

16.

What phrase would best describe the formula CO₂

a)

Molecule of carbon dioxide (compound)

b)

Molecule of carbon dioxide (element)

c)

Atom of carbon dioxide (compound)

d)

Lattice of carbon dioxide (compound)

17.

How many protons does an atom of titanium have?

a)

22

b)

48

c)

26

d)

70

18.

How many electrons does an atom of boron have?

a)

5

b)

11

c)

6

d)

don't know

19.

How many neutrons does an atom of ¹H have?

a)

0

b)

1

c)

2

20.

What is the relative atomic mass of potassium?

a)

39

b)

19

c)

20

21.

What is the relative charge of a neutron?

a)

0

b)

+1

c)

-1

d)

1/2000

22.

What is the relative charge of a proton

a)

+1

b)

0

c)

-1

d)

1/2000

23.

What is the relative charge of an electron?

a)

-1

b)

+1

c)

0

d)

1/2000

24.

Why are atoms neutral?

a)

They have the same number of protons and electrons

b)

They have the same number of neutrons and electrons

c)

They have the same number of protons and neutrons

25.

What property determines the element that an atom is?

a)

number of protons

b)

number of neutrons

c)

number of electrons

d)

mass number

26.

Which separation technique would best separate sand from water

a)

filtration

b)

evaporation

c)

distillation

d)

chromatography

27.

Which separation technique would best separate salt from salt water solution

a)

crystallisation

b)

filtration

c)

distillation

d)

chromatography

28.

Which technique would be best to separate crude oil (a mixture of many liquids)

a)

Fractional distillation

b)

simple distillation

c)

filtration

d)

crystallisation

29.

Which separation technique is shown in the picture?

a)

Fractional distillation

b)

Simple distillation

c)

Filtration

d)

Crystallisation

30.

Which separation technique is shown in the picture?

a)

chromatography

b)

filtration

c)

simple distillation

d)

fractional distillation

31.

How many electrons are in the second shell of a carbon atom?

a)

4

b)

2

c)

6

d)

12

32.

What is the electron configuration of a calcium atom?

a)

2.8.8.2

b)

2.8.10

c)

20

d)

2.8.8.1

33.

What is the electronic configuration of a lithium atom?

a)

2.1

b)

3

c)

1.2

d)

2.5

34.

What is the electron configuration of a magnesium atom?

a)

2.8.2

b)

2.8.8.2

c)

12

d)

24

35.

How many electrons does an oxygen atom have in its outermost shell?

a)

2

b)

6

c)

8

d)

16

36.

How many electrons does an aluminium atom have in its second shell?

a)

8

b)

10

c)

3

d)

2

37.

What do all elements in group 1 have in common?

a)

They all have 1 electron in their outer shell

b)

They all have the same number of electrons

c)

They all have the same number of neutrons

d)

They all have the same number of filled electron shells

38.

Isotopes of the same element have different chemical properties

a)

true

b)

false

39.

The number of electrons in the outer shell is the same as the elements...

a)

group number

b)

atomic number

c)

relative atomic mass

d)

period number

40.

Definition of relative atomic mass

a)

The weighted average mass of an atom of an element, taking into account all isotopes. It is compared relative to an atom of carbon-12

b)

The weighted average mass of an atom of an element, taking into account all isotopes. It is compared relative to an atom of carbon-13

c)

The average mass of an element, taking into account all isotopes. It is compared relative to an atom of carbon-12

d)

The total number of protons and neutrons in the nucleus of an atom

41.

A pure substance has a (a) melting/boiling point

42.

The melting/boiling point of an impure substance occurs over a (a) of temperatures

43.

Which separation technique is shown in the picture

a)

Filtration

b)

Chromatography

c)

Distillation

d)

Crystallisation

44.

Which separation technique is shown in the picture

(a)

45.

What type of mixture should filtration be used to separate?

a)

Insoluble solid and liquid

b)

Solute and solvent

c)

Gas and liquid

d)

2 solids

46.

What separation technique should be used to separate a mixture of an insoluble solid and a liquid

(a)

47.

What separation technique should be used to separate sand and water?

(a)

48.

What is the name given to the solid separated from filtration?

(a)

49.

What is the name given to the liquid that is collected from filtration?

(a)

50.

Which separation technique is shown in the picture?

a)

Crystallisation

b)

Filtration

c)

Chromatography

d)

Distillation

51.

Which separation technique is shown in the picture?

(a)

52.

When is crystallisation used?

a)

To obtain a solute from a solution

b)

To obtain the solvent from a solution

c)

To separate 2 liquids

d)

To separate an insoluble solid from a liquid

53.

Which scenario should crystallisation be used as a separation technique

a)

To obtain salt from salt water solution

b)

To obtain sand from a mixture of sand and water

c)

To separate alcohol from water

d)

To obtain water from salt water solution

54.

Place the stages of separating salt from rocksalt into the correct order

a)

Crush the rocksalt

b)

Add rocksalt to water and stir

c)

Filter the mixture of rocksalt and water

d)

Heat to filtrate to the point of saturation

e)

Allow to cool and slowly evaporate

1)

2)

3)

4)

5)

55.

Name the separation technique shown in the diagram

a)

Simple Distillation

b)

Fractional Distillation

c)

Crystallisation

d)

Chromatography

56.

Name the separation technique shown in the diagram

(a)

57.

When is simple distillation used?

a)

To obtain the solvent from a solution

b)

To obtain the solute from a solution

c)

To separate an insoluble solid from a liquid

d)

To separate a mixture of liquids with similar boiling points

58.

Name the separation technique shown in the diagram

a)

Simple Distillation

b)

Fractional Distillation

c)

Crystallisation

d)

Chromatography

59.

When is fractional distillation used?

a)

To obtain the solvent from a solution

b)

To obtain the solute from a solution

c)

To separate an insoluble solid from a liquid

d)

To separate a mixture of liquids with similar boiling points

60.

Which separation technique should be used to separate ethanol (alcohol) from water

a)

Fractional distillation

b)

Simple distillation

c)

Chromatography

d)

Filtration

61.

Which technique should be used to separate ethanol and water (liquids with similar boiling points)

a)

Fractional Distillation

b)

Simple Distillation

c)

Filtration

d)

Crystallisation

62.

Match the separation technique to the scenario

a)

Separating sand and water

1.

Filtration

b)

Obtaining salt from salt water solution

2.

Crystallisation

c)

Obtaining water from salt water solution

3.

Simple Distillation

d)

Separating ethanol from water

4.

Fractional Distillation

e)

Analysing components of a mixture

5.

Chromatography

63.

(a) is used to draw the baseline in chromatography because is is (b) in most solvents

Choose from the below words

pencil

insoluble

pen

soluble

64.

How many substances does the chromatogram show?

(a)

65.

In chromatography, the R_f value is calculated by:

a)

$R_{f\ }=\ \frac{Dis\tan ce\ of\ spot\ from\ baseline}{Dis\tan ce\ of\ solvent\ front\ from\ baseline}$

b)

$R_{f\ }=\ \frac{Dis\tan ce\ of\ solvent\ front\ from\ baseline}{Dis\tan ce\ of\ spot\ from\ baseline}$

66.

Calculate the Rf value

(a)

67.

How would the Rf value be calculated for this chromatogram?

a)

$\frac{25}{100}$

b)

$\frac{100}{25}$

c)

25 + 100

d)

$25\ \times100$

68.

Calculate the Rf value

(a)

69.

What is the calculation for the Rf value of the spot

a)

$\frac{B}{D}$

b)

$\frac{A}{C}$

c)

$\frac{A}{D}$

d)

$\frac{B}{C}$

70.

Chromatography is used to analyse a mixture (m) against different dyes (d).

Which dyes does the mixture contain

a)

d1

b)

d2

c)

d3

d)

d4

71.

Chromatography is used to analyse a mixture (m) against different dyes (d).

Which dye is not found in the mixture

a)

d1

b)

d2

c)

d3

d)

d4

72.

Chromatography is used to analyse the ink used on a letter.

Which pen could have been used?

a)

G

b)

M

c)

P

d)

R

e)

T

73.

Chromatography is used to analyse the ink used on a letter.

Which pen contains only one type of ink?

a)

G

b)

M

c)

P

d)

R

e)

T

74.

How many protons does the aluminium atom have in its nucleus

(a)

75.

How many neutrons does this sodium atom have in its nucleus?

(a)

76.

The number of neutrons can be calculated by doing:

(a) - (b)

Choose from the below words

Mass number

atomic number

77.

The overall charge of an atom is (a) because there are the same number of (b) protons and (c) (d)

Choose from the below words

0

positive

negative

electrons

neutral

neutrons

+1

-1

78.

(a)

79.

(a)

80.

(a)

81.

(a)

82.

(a)

83.

(a)

84.

(a)

85.

Match the following

a)

X

1.

Proton

b)

Y

2.

Neutron

c)

Z

3.

Electron

86.

(a)

87.

What is the relative charge of an electron?

a)

+1

b)

-1

c)

0

d)

1

88.

What is the relative charge of a neutron?

a)

+1

b)

-1

c)

0

d)

1

89.

What is the relative charge of a proton?

a)

+1

b)

-1

c)

0

d)

1

90.

Match the following relative charges:

a)

Proton

1.

+1

b)

Neutron

2.

0

c)

Electron

3.

-1

91.

What is the relative charge of an electron?

(a)

92.

What is the relative charge of a neutron?

(a)

93.

(a) have a relative mass of 1/1836

Choose from the below words

electrons

protons

neutrons

94.

What is the relative mass of a neutron

(a)

95.

What is the relative mass of an electron?

a)

1/1836

b)

1

c)

2

d)

0

96.

What is the relative mass of a proton

(a)

97.

The number of (a) determines which element an atom is

98.

What is the relative mass of a proton

(a)

99.

"The smallest part of an element that can still be recognised as the element"

This is a definition for...

a)

An atom

b)

A molecule

c)

A proton

d)

An element

100.

Name the subatomic particle

(a)

101.

Name the subatomic particle

(a)

102.

Name the subatomic particle

(a)

103.

Match the following

a)

Neutron

1.

A

b)

Proton

2.

B

c)

Electron

3.

C

104.

The atomic number is the number of (a) in the nucleus of an atom

105.

The (a) number is the number of protons in the nucleus of an atom

106.

The atomic number is the number of (a) in the nucleus of an atom

Choose from the below words

protons

neutrons

electrons

107.

How many protons does the hydrogen atom have

(a)

108.

How many neutrons does the hydrogen atom have

(a)

109.

What is the atomic number of the Helium atom

(a)

110.

What is the mass number of the Helium atom

(a)

111.

How many protons does the Helium atom have in its nucleus

(a)

112.

How many neutrons does the Helium atom have in its nucleus

(a)

113.

What is the atomic number of the lithium atom?

(a)

114.

What is the mass number of the lithium atom?

(a)

115.

How many protons does the lithium atom have in its nucleus?

(a)

116.

The lithium atom has:

(a) protons

(b) neutrons

Choose from the below words

3

4

7

10

117.

The (a) number is 7 and the (b) number is 3.

The atom has (c) protons and (d) neutrons

Choose from the below words

mass

atomic

3

4

7

118.

What is the atomic number of the Fluorine atom?

(a)

119.

The (a) number of the Fluorine atom is 19

Choose from the below words

mass

atomic

120.

Which element has the symbol Pb?

(a)

121.

How many neutrons does the atom of Lead contain?

(a)

122.

The (a) number of the lead atom is 82

The (b) number of the lead atom is 207

Choose from the below words

atomic

mass

123.

The mass number is the number of protons AND (a) in the nucleus of the atom

124.

Match the following

a)

Atomic number

1.

Number of protons

b)

Mass number

2.

Number of protons and neutrons

c)

Group number

3.

Number of electrons in the outer shell

125.

Which property of an atom determines the element that an atom is?

a)

Atomic number

b)

Mass number

c)

Group number

d)

Number of neutrons

126.

The number of (a) determines which element an atom is

127.

What is the relative mass of a proton

(a)

128.

What is the relative mass of a neutron

(a)

129.

What is the relative mass of an electron?

a)

1/1836

b)

1

c)

2

d)

0

130.

(a) have a relative mass of 1/1836

Choose from the below words

electrons

protons

neutrons

131.

What is the relative charge of a proton?

(a)

132.

What is the relative charge of a neutron?

(a)

133.

What is the relative charge of an electron?

(a)

134.

Match the following relative charges:

a)

Proton

1.

+1

b)

Neutron

2.

0

c)

Electron

3.

-1

135.

(a)

136.

Match the following

a)

X

1.

Proton

b)

Y

2.

Neutron

c)

Z

3.

Electron

137.

(a)

138.

(a)

139.

What unit of matter is shown here?

a)

Atom

b)

Molecule

c)

Giant Lattice

140.

How many atoms does each molecule contain?

(a)

141.

What unit of matter is shown in the picture?

(a)

142.

What unit of matter is shown in the picture?

(a)

143.

If a substance contains only one type of atom joined together it can be classified as an... (a)

144.

If a substance contains 2 or more different atoms chemically combined it can be classified as a (a)

145.

What is the best description of the substance shown?

a)

Molecules of a compound

b)

Molecules of an element

c)

Atoms of an element

d)

A giant lattice of a compound

146.

How many atoms does each molecule contain?

(a)

147.

What is the best description of the substance shown?

a)

A giant lattice of a compound

b)

A giant lattice of an element

c)

A molecule of a compound

d)

A molecule of an element

148.

A substance containing 2 or more different elements or compounds NOT chemically combined is a (a)

149.

What is the best description of this substance

a)

A mixture of molecules of elements

b)

A mixture of molecules of compounds

c)

Pure molecules of an element

d)

Pure molecules of a compound

150.

What is the best description of the substance shown

a)

Molecules of an element

b)

Molecules of a compound

c)

Atoms of an element

d)

A lattice of a compound

151.

What is the best description of this substance?

a)

Giant lattice of a compound

b)

Giant lattice of an element

c)

Molecules of a compound

d)

Molecules of an element

152.

What is the best description of this substance

a)

A mixture of molecules of an element and compound

b)

A mixture of molecules of elements

c)

A mixture of molecules of compounds

d)

A mixture of atoms of elements

153.

A pure substance has a (a) melting/boiling point

154.

The melting/boiling point of an impure substance occurs over a (a) of temperatures

155.

The picture shows (a) of 2 different (b)

Choose from the below words

molecules

elements

atoms

compounds

156.

Match the following

a)

Element

1.

A substance containing only 1 type of atom

b)

Compound

2.

A substance containing 2 or more different atoms chemically combined

c)

Mixture

3.

A substance containing 2 or more different elements or compounds NOT chemically combined

157.

Particles in a solid have a (a) arrangement

158.

Particles in a solid (a) in a (b) (c)

Choose from the below words

vibrate

fixed

position

159.

What are the typical properties of a solid

a)

fixed shape

b)

non-fixed shape

c)

cannot be compressed

d)

can be compressed

e)

Can be poured

160.

Particles in a liquid are (a) arranged and (b)

Choose from the below words

randomly

closely packed

regularly

spread far apart

not touching

161.

Which of the following are typical properties of a liquid

a)

Cannot be compressed

b)

Can be compressed

c)

Fill the shape of the container from the bottom

d)

Fixed shape

e)

Can be poured

162.

What is the name of the conversion from solid to liquid?

(a)

163.

What is the name of the conversion from liquid to gas?

(a)

164.

What is the name of the conversion from solid to gas

(a)

165.

What is the name of the process from gas to liquid?

(a)

166.

What is the name of the conversion from liquid to solid

(a)

167.

What is the name of the conversion of a gas to a solid

(a)

168.

Melting Point: 0 ^oC

Boiling Point: 100 ^oC

What state of matter is the substance at 78 ^oC?

(a)

169.

Melting Point: 0 ^oC

Boiling Point: 100 ^oC

What state of matter is the substance at -10 ^oC?

(a)

170.

Melting Point: 0 ^oC

Boiling Point: 100 ^oC

What state of matter is the substance at 110 ^oC?

(a)

171.

Melting Point: -10 ^oC

Boiling Point: 40 ^oC

What state of matter is the substance at 35 ^oC?

(a)

172.

Melting Point: -10 ^oC

Boiling Point: 40 ^oC

What state of matter is the substance at -15 ^oC?

(a)

173.

Melting Point: -10 ^oC

Boiling Point: 40 ^oC

What state of matter is the substance at 400 ^oC?

(a)

174.

Melting Point: -125 ^oC

Boiling Point: -40 ^oC

What state of matter is the substance at -130 ^oC?

(a)

175.

Melting Point: -125 ^oC

Boiling Point: -40 ^oC

What state of matter is the substance at -20 ^oC?

(a)

176.

Melting Point: -125 ^oC

Boiling Point: -40 ^oC

What state of matter is the substance at -41 ^oC?

(a)

177.

Diffusion is the movement of particles from a region of (a) concentration to (b) concentration.

Choose from the below words

high

low

178.

Match the following

a)

Solute

1.

The substance being dissolved in the solvent

b)

Solvent

2.

The liquid that dissolves a solute

c)

Solution

3.

A homogeneous mixture of a solute and solvent

179.

A (a) solution is one where no more solute can be dissolved at a given temperature

180.

Solubility is the (a) of (b) that must be dissolved in (c) of (d) at a specified (e) to make a (f) solution

Choose from the below words

mass

solute

100 g

solvent

temperature

saturated

181.

What are the units of solubility?

(a)

182.

Match the following

a)

Solid --> liquid

1.

melting

b)

Liquid --> gas

2.

Boiling

c)

Gas --> liquid

3.

Condensing

d)

Liquid --> solid

4.

Freezing

e)

Solid --> gas

5.

Sublimation

Third Form Question Bank

Total questions: 182

Worksheet time: 2hrs 31mins

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