CHEMISTRY A HIGHER TIER COMPLETE EXAM
PRACTICE ALL PAPERS WITH MARK SCHEME
◉ What is the trend in boiling point as you go down Group 0?
Answer: The boiling points increase
◉ What subatomic particles does the nucleus contain? Answer:
Protons and neutrons
◉ What is relative atomic mass? Answer: The mass number which
refers to the element as a whole
◉ How are positive ions formed? Answer: A metal atom loses
electrons
◉ How are negative ions formed? Answer: A non-metal gains
electrons
◉ What is air a mixture of? Answer: Gases, mainly nitrogen, oxygen,
carbon dioxide and argon
◉ What is crude oil a mixture of? Answer: Different length
hydrocarbon molecules
,◉ How can you separate substances in a mixture? Answer:
Chromatography
◉ What is simple distillation used for? Answer: Separating out a
liquid from a solution
E.g. separating pure water from seawater
◉ How were elements arranged in the early 1800s? Answer: By
their physical and chemical properties and their relative atomic
mass
◉ How are columns arranged? Answer: Elements with similar
properties
◉ What are the three similar basic properties of metals? Answer: 1)
They're strong but are malleable
2) They're great at conducting heat and electricity
3) They have high boiling and melting points
◉ What is the product of the reaction of a Group 1 metal with
chlorine? Answer: A metal chloride salt
E.g. sodium + chlorine --> sodium chloride
,◉ What is the product of the reaction of a Group 1 metal with
oxygen? Answer: A metal oxide, depending on the Group 1 metal
-Lithium + oxygen --> lithium oxide
-Sodium + oxygen --> sodium oxide + sodium peroxide
-Potassium + oxygen --> potassium peroxide + potassium
superoxide
◉ What are halogens? Answer: Non-metals in Group 7 with coloured
vapours
◉ What colour is fluorine? Answer: A very reactive, poisonous
yellow gas
◉ What colour is chlorine? Answer: A fairly reactive, poisonous
dense green gas
◉ What colour is bromine? Answer: A dense, poisonous red-brown
volatile liquid
◉ What colour is iodine? Answer: A dark grey crystalline solid or a
purple vapour
◉ What do halogens exist as? Answer: Molecules - pairs of atoms
, ◉ What do halogens form? Answer: 1) Molecular compounds -
halogens share electrons via covalent bonding with other non-
metals too achieves a full outer shell
2) Ionic compounds with metals - they form 1- ions called halides
◉ What do noble gases exist as? Answer: Monatomic gases - single
atoms not bonded to each other
◉ What are the noble gases at room temperature? Answer:
Colourless gases
◉ Are the noble gases flammable? Answer: No - they're non-
flammable
◉ Why does the boiling point of noble gases increase as you move
down the group? Answer: There's an increase in the number of
electrons in each atom leading to greater intermolecular forces
between them which to be overcome
◉ Paper Chromatography - Method Answer: 1) Draw a pencil line
near the bottom of a sheet of filter paper
2) Add a spot of ink to the line & place the sheet in a beaker of
solvent e.g. water - the solvent used depends on what's being tested -
some compounds dissolve well in water, but sometimes other
solvents e.g. ethanol are needed
PRACTICE ALL PAPERS WITH MARK SCHEME
◉ What is the trend in boiling point as you go down Group 0?
Answer: The boiling points increase
◉ What subatomic particles does the nucleus contain? Answer:
Protons and neutrons
◉ What is relative atomic mass? Answer: The mass number which
refers to the element as a whole
◉ How are positive ions formed? Answer: A metal atom loses
electrons
◉ How are negative ions formed? Answer: A non-metal gains
electrons
◉ What is air a mixture of? Answer: Gases, mainly nitrogen, oxygen,
carbon dioxide and argon
◉ What is crude oil a mixture of? Answer: Different length
hydrocarbon molecules
,◉ How can you separate substances in a mixture? Answer:
Chromatography
◉ What is simple distillation used for? Answer: Separating out a
liquid from a solution
E.g. separating pure water from seawater
◉ How were elements arranged in the early 1800s? Answer: By
their physical and chemical properties and their relative atomic
mass
◉ How are columns arranged? Answer: Elements with similar
properties
◉ What are the three similar basic properties of metals? Answer: 1)
They're strong but are malleable
2) They're great at conducting heat and electricity
3) They have high boiling and melting points
◉ What is the product of the reaction of a Group 1 metal with
chlorine? Answer: A metal chloride salt
E.g. sodium + chlorine --> sodium chloride
,◉ What is the product of the reaction of a Group 1 metal with
oxygen? Answer: A metal oxide, depending on the Group 1 metal
-Lithium + oxygen --> lithium oxide
-Sodium + oxygen --> sodium oxide + sodium peroxide
-Potassium + oxygen --> potassium peroxide + potassium
superoxide
◉ What are halogens? Answer: Non-metals in Group 7 with coloured
vapours
◉ What colour is fluorine? Answer: A very reactive, poisonous
yellow gas
◉ What colour is chlorine? Answer: A fairly reactive, poisonous
dense green gas
◉ What colour is bromine? Answer: A dense, poisonous red-brown
volatile liquid
◉ What colour is iodine? Answer: A dark grey crystalline solid or a
purple vapour
◉ What do halogens exist as? Answer: Molecules - pairs of atoms
, ◉ What do halogens form? Answer: 1) Molecular compounds -
halogens share electrons via covalent bonding with other non-
metals too achieves a full outer shell
2) Ionic compounds with metals - they form 1- ions called halides
◉ What do noble gases exist as? Answer: Monatomic gases - single
atoms not bonded to each other
◉ What are the noble gases at room temperature? Answer:
Colourless gases
◉ Are the noble gases flammable? Answer: No - they're non-
flammable
◉ Why does the boiling point of noble gases increase as you move
down the group? Answer: There's an increase in the number of
electrons in each atom leading to greater intermolecular forces
between them which to be overcome
◉ Paper Chromatography - Method Answer: 1) Draw a pencil line
near the bottom of a sheet of filter paper
2) Add a spot of ink to the line & place the sheet in a beaker of
solvent e.g. water - the solvent used depends on what's being tested -
some compounds dissolve well in water, but sometimes other
solvents e.g. ethanol are needed
