ocr chemistry
AS Level Chemistry A
H032/01 Breadth in chemistry
Sample Question Paper
Date – Morning/Afternoon Version 2.1
Time allowed: 1 hour 30 minutes
You m ust have:
• the Data Sheet for Chemistry A
You m ay use:
• a scientific or graphical calculator
* 0 0 0 0 0 0 *
First name
Last name
Centre Candidate
number number
INSTRUCTIONS
• Use black ink. You may use an HB pencil for graphs and diagrams.
• Complete the boxes above with your name, centre number and candidate number.
• Answer all the questions.
• Where appropriate, your answers should be supported with working. Marks may
be given for a correct method even if the answer is incorrect.
• 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).
• Do not write in the bar codes.
INFORMATION
• The total mark for this paper is 70.
• The marks for each question are shown in brackets [ ].
• This document consists of 28 pages.
© OCR 2021 H032/01
[601/5256/4] DC (…) Turn over
, 2
SECTION A
You should spend a maximum of 25 minutes on this section.
Answer all the questions.
1 How many electrons are in a 24Mg2+
12 ion?
A 10
B 12
C 14
D 22
Your answer
[1]
2 What is the formula of chromium(III) sulfate?
A Cr3 SO4
B Cr(SO4 )3
C Cr2 (SO4 )3
D Cr3 SO3
Your answer
[1]
3 Which molecule is non-polar?
A SF6
B H2 S
C PF3
D NH3
Your answer
[1]
© OCR 2021 H032/01
, 3
4 Which row is correct?
Highest pH when added to water Most reactive halogen
A MgO F2
B MgO I2
C BaO F2
D BaO I2
Your answer
[1]
5 Which equation represents a redox reaction?
A Mg + 2HCl → MgCl2 + H2
B MgO + 2HCl → H2 O + MgCl2
C MgCO3 + 2HCl → CO2 + H2 O + MgCl2
D Mg(OH)2 + 2HCl → MgCl2 + 2H2 O
Your answer
[1]
6 This question is about trends in the periodic table.
Which trend is correct?
A melting point decreases from lithium to carbon
B boiling point decreases from fluorine to iodine
C first ionisation energy decreases from lithium to caesium
D first ionisation energy increases from nitrogen to oxygen
Your answer
[1]
© OCR 2021 H032/01 Turn over
, 4
7 A sample of a compound M contains 1.46 g of carbon, 0.482 g of hydrogen and
1.69 g of nitrogen.
What is the empirical formula of M?
A CH2 N
B C4 HN4
C CH4 N
D C2 H4 N
Your answer
[1]
8 A student mixes 100 cm3 of 0.200 mol dm–3 NaCl(aq) with 100 cm3 of
0.200 mol dm–3 Na2 CO3 (aq).
What is the total concentration of Na+ ions in the mixture formed?
A 0.100 mol dm–3
B 0.200 mol dm–3
C 0.300 mol dm–3
D 0.400 mol dm–3
Your answer
[1]
9 Which mass of substance contains the greatest number of atoms?
A 3.00 g of ammonia, NH3
B 3.00 g of chloromethane, CHCl3
C 4.00 g of hydrogen sulfide, H2 S
D 4.00 g of hydrogen chloride, HCl
Your answer
[1]
© OCR 2021 H032/01
AS Level Chemistry A
H032/01 Breadth in chemistry
Sample Question Paper
Date – Morning/Afternoon Version 2.1
Time allowed: 1 hour 30 minutes
You m ust have:
• the Data Sheet for Chemistry A
You m ay use:
• a scientific or graphical calculator
* 0 0 0 0 0 0 *
First name
Last name
Centre Candidate
number number
INSTRUCTIONS
• Use black ink. You may use an HB pencil for graphs and diagrams.
• Complete the boxes above with your name, centre number and candidate number.
• Answer all the questions.
• Where appropriate, your answers should be supported with working. Marks may
be given for a correct method even if the answer is incorrect.
• 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).
• Do not write in the bar codes.
INFORMATION
• The total mark for this paper is 70.
• The marks for each question are shown in brackets [ ].
• This document consists of 28 pages.
© OCR 2021 H032/01
[601/5256/4] DC (…) Turn over
, 2
SECTION A
You should spend a maximum of 25 minutes on this section.
Answer all the questions.
1 How many electrons are in a 24Mg2+
12 ion?
A 10
B 12
C 14
D 22
Your answer
[1]
2 What is the formula of chromium(III) sulfate?
A Cr3 SO4
B Cr(SO4 )3
C Cr2 (SO4 )3
D Cr3 SO3
Your answer
[1]
3 Which molecule is non-polar?
A SF6
B H2 S
C PF3
D NH3
Your answer
[1]
© OCR 2021 H032/01
, 3
4 Which row is correct?
Highest pH when added to water Most reactive halogen
A MgO F2
B MgO I2
C BaO F2
D BaO I2
Your answer
[1]
5 Which equation represents a redox reaction?
A Mg + 2HCl → MgCl2 + H2
B MgO + 2HCl → H2 O + MgCl2
C MgCO3 + 2HCl → CO2 + H2 O + MgCl2
D Mg(OH)2 + 2HCl → MgCl2 + 2H2 O
Your answer
[1]
6 This question is about trends in the periodic table.
Which trend is correct?
A melting point decreases from lithium to carbon
B boiling point decreases from fluorine to iodine
C first ionisation energy decreases from lithium to caesium
D first ionisation energy increases from nitrogen to oxygen
Your answer
[1]
© OCR 2021 H032/01 Turn over
, 4
7 A sample of a compound M contains 1.46 g of carbon, 0.482 g of hydrogen and
1.69 g of nitrogen.
What is the empirical formula of M?
A CH2 N
B C4 HN4
C CH4 N
D C2 H4 N
Your answer
[1]
8 A student mixes 100 cm3 of 0.200 mol dm–3 NaCl(aq) with 100 cm3 of
0.200 mol dm–3 Na2 CO3 (aq).
What is the total concentration of Na+ ions in the mixture formed?
A 0.100 mol dm–3
B 0.200 mol dm–3
C 0.300 mol dm–3
D 0.400 mol dm–3
Your answer
[1]
9 Which mass of substance contains the greatest number of atoms?
A 3.00 g of ammonia, NH3
B 3.00 g of chloromethane, CHCl3
C 4.00 g of hydrogen sulfide, H2 S
D 4.00 g of hydrogen chloride, HCl
Your answer
[1]
© OCR 2021 H032/01
