AQA
GCSE
COMBINED SCIENCE: SYNERGY
Foundation Tier Paper 3 Physical
Sciences
June 2023
, 2
Do not write
outside the
box
0 1 This question is about acids and alkalis.
Universal indicator is used to measure the pH of solutions.
0 1 . 1 Which is a pH value of an alkaline solution?
[1 mark]
Tick (✓) one box.
5 7 9
0 1 . 2 Which is a colour of universal indicator in an alkaline solution?
[1 mark]
Tick (✓) one box.
Blue
Red
Yellow
0 1 . 3 What piece of equipment measures the pH of a solution more accurately than
universal indicator?
[1 mark]
G/Jun23/8465/3F
, 3
Do not write
outside the
box
0 1 . 4 Which ion do all acids produce in aqueous solution?
[1 mark]
Tick (✓) one box.
H+ OH− O2−
0 1 . 5 The reaction between an acid and an alkali produces water.
What is the name of this type of reaction?
[1 mark]
Tick (✓) one box.
Combustion
Decomposition
Neutralisation
Question 1 continues on the next page
Turn over U
G/Jun23/8465/3F
, 4
Do not write
outside the
box
0 1 . 6 Sulfuric acid has the formula H2SO4
What is the total number of atoms in the formula H2SO4?
[1 mark]
Tick (✓) one box.
3 6 7 10
0 1 . 7 0.5 dm3 of a solution of sulfuric acid contains 9.8 g of sulfuric acid.
Calculate the concentration of the solution of sulfuric acid.
Use the equation:
mass of sulfuric acid
concentration =
volume of solution
[2 marks]
Concentration = ___________________ g/dm3 8
G/Jun23/8465/3F
GCSE
COMBINED SCIENCE: SYNERGY
Foundation Tier Paper 3 Physical
Sciences
June 2023
, 2
Do not write
outside the
box
0 1 This question is about acids and alkalis.
Universal indicator is used to measure the pH of solutions.
0 1 . 1 Which is a pH value of an alkaline solution?
[1 mark]
Tick (✓) one box.
5 7 9
0 1 . 2 Which is a colour of universal indicator in an alkaline solution?
[1 mark]
Tick (✓) one box.
Blue
Red
Yellow
0 1 . 3 What piece of equipment measures the pH of a solution more accurately than
universal indicator?
[1 mark]
G/Jun23/8465/3F
, 3
Do not write
outside the
box
0 1 . 4 Which ion do all acids produce in aqueous solution?
[1 mark]
Tick (✓) one box.
H+ OH− O2−
0 1 . 5 The reaction between an acid and an alkali produces water.
What is the name of this type of reaction?
[1 mark]
Tick (✓) one box.
Combustion
Decomposition
Neutralisation
Question 1 continues on the next page
Turn over U
G/Jun23/8465/3F
, 4
Do not write
outside the
box
0 1 . 6 Sulfuric acid has the formula H2SO4
What is the total number of atoms in the formula H2SO4?
[1 mark]
Tick (✓) one box.
3 6 7 10
0 1 . 7 0.5 dm3 of a solution of sulfuric acid contains 9.8 g of sulfuric acid.
Calculate the concentration of the solution of sulfuric acid.
Use the equation:
mass of sulfuric acid
concentration =
volume of solution
[2 marks]
Concentration = ___________________ g/dm3 8
G/Jun23/8465/3F
