PAPER 1
Chemistry Mock
Upper Sixth Form
March 2020
INSTRUCTIONS
• Use black ink. HB pencil may be used for graphs and diagrams only.
• Complete the boxes above with your name, centre number and candidate
number.
• Answer all the questions.
• Write your answer to each question in the space provided.
• Additional paper may be used if required but you must clearly show
your candidate number, centre number and question number(s).
• Quality of extended responses will be assessed in questions marked with an
asterisk (*).
• Total marks = 100
Length: 2 hrs 15min Date: Start
, 2
SECTION A
You should spend a maximum of 20 minutes on this
section.
Write your answer to each question in the box provided.
Answer all the questions.
1 In the diagrams below, each box represents an orbital and each electron is shown as
an arrow.
Which diagram shows the correct arrangement of electrons in an atom of carbon?
2p
2s
A energy
1s
2p
2s
B energy
1s
2p
2s
C energy
1s
2p
2s
D energy
1s
Your answer [1]
, 3
2 Which statement about the reactions of halogens with halide ions is correct?
A I2(aq) can oxidise Br−
(aq). B Cl 2(aq) can reduce
Br−(aq). C Br−(aq) can
reduce Cl 2(aq). D Cl −(aq)
can oxidise I2(aq).
Your answer [1]
3 One molecule of a gas has a mass of 2.658 × 10−23 g.
What is a possible formula of the gas?
A CH4
B O2
C SO2
D SO3
Your answer [1]
4 In the laboratory, acid spills can be cleaned up and made safe by spreading
anhydrous sodium carbonate over the spill to neutralise the acid.
A student accidentally spills 50.0 cm3 of 2.00 mol dm−3 HCl (aq) on the bench.
What is the minimum mass of anhydrous sodium carbonate required to neutralise the
acid?
A 4.15 g
B 5.30 g
C 8.30 g
D 10.6 g
Your answer [1]
, 4
Turn over
Chemistry Mock
Upper Sixth Form
March 2020
INSTRUCTIONS
• Use black ink. HB pencil may be used for graphs and diagrams only.
• Complete the boxes above with your name, centre number and candidate
number.
• Answer all the questions.
• Write your answer to each question in the space provided.
• Additional paper may be used if required but you must clearly show
your candidate number, centre number and question number(s).
• Quality of extended responses will be assessed in questions marked with an
asterisk (*).
• Total marks = 100
Length: 2 hrs 15min Date: Start
, 2
SECTION A
You should spend a maximum of 20 minutes on this
section.
Write your answer to each question in the box provided.
Answer all the questions.
1 In the diagrams below, each box represents an orbital and each electron is shown as
an arrow.
Which diagram shows the correct arrangement of electrons in an atom of carbon?
2p
2s
A energy
1s
2p
2s
B energy
1s
2p
2s
C energy
1s
2p
2s
D energy
1s
Your answer [1]
, 3
2 Which statement about the reactions of halogens with halide ions is correct?
A I2(aq) can oxidise Br−
(aq). B Cl 2(aq) can reduce
Br−(aq). C Br−(aq) can
reduce Cl 2(aq). D Cl −(aq)
can oxidise I2(aq).
Your answer [1]
3 One molecule of a gas has a mass of 2.658 × 10−23 g.
What is a possible formula of the gas?
A CH4
B O2
C SO2
D SO3
Your answer [1]
4 In the laboratory, acid spills can be cleaned up and made safe by spreading
anhydrous sodium carbonate over the spill to neutralise the acid.
A student accidentally spills 50.0 cm3 of 2.00 mol dm−3 HCl (aq) on the bench.
What is the minimum mass of anhydrous sodium carbonate required to neutralise the
acid?
A 4.15 g
B 5.30 g
C 8.30 g
D 10.6 g
Your answer [1]
, 4
Turn over
