Cambridge IGCSE™
CHEMISTRY 0620/22
Paper 2 Multiple Choice (Extended) October/November 2022
45 minutes
You must answer on the multiple choice answer sheet.
*7173935082*
You will need: Multiple choice answer sheet
Soft clean eraser
Soft pencil (type B or HB is recommended)
INSTRUCTIONS
There are forty questions on this paper. Answer all questions.
For each question there are four possible answers A, B, C and D. Choose the one you consider correct
and record your choice in soft pencil on the multiple choice answer sheet.
Follow the instructions on the multiple choice answer sheet.
Write in soft pencil.
Write your name, centre number and candidate number on the multiple choice answer sheet in the
spaces provided unless this has been done for you.
Do not use correction fluid.
Do not write on any bar codes.
You may use a calculator.
INFORMATION
The total mark for this paper is 40.
Each correct answer will score one mark.
Any rough working should be done on this question paper.
The Periodic Table is printed in the question paper.
This document has 16 pages.
IB22 11_0620_22/4RP
© UCLES 2022 [Turn over
, 2
1 The rate of diffusion of three gases, ammonia, carbon dioxide and methane, is measured.
What is the order of the rate of diffusion of the gases from slowest to fastest?
A CO2 NH3 CH4
B CO2 CH4 NH3
C CH4 NH3 CO2
D NH3 CH4 CO2
2 Which description of Brownian motion is correct?
A random movement of particles due to bombardment by larger particles
B random movement of particles due to bombardment by smaller particles
C random movement of particles from a high concentration to a low concentration
D random movement of particles from a low concentration to a high concentration
3 The chromatogram obtained using four substances, J, K, L and M, is shown.
solvent front
baseline
J K L M
Which statement about M is correct?
A It is a mixture of J and K only.
B It is a pure substance.
C It is a mixture of J, K and L.
D It is a mixture of J, K and an unknown substance.
© UCLES 2022 0620/22/O/N/22
, 3
4 Which statements about isotopes of the same element are correct?
1 They are atoms which have the same chemical properties because they have the
same number of electrons in their outer shell.
2 They are atoms which have the same number of electrons and neutrons but
different numbers of protons.
3 They are atoms which have the same number of electrons and protons but different
numbers of neutrons.
A 1 and 2 B 1 and 3 C 2 only D 3 only
5 Which statement about solid magnesium oxide is correct?
A It is a giant structure made up of magnesium and oxygen atoms bonded covalently.
B It is an electrical conductor with mobile magnesium ions and oxygen ions.
C Magnesium loses electrons and these electrons move freely through a lattice.
D Oxygen ions and magnesium ions are attracted to each other in a giant lattice.
6 Which molecule contains only three shared pairs of electrons?
A CH3OH B Cl 2 C H2O D N2
7 Which particles are present in the structure of metals?
1 positive ions
2 negative ions
3 shared pairs of electrons
4 mobile electrons
A 1 and 2 B 1 and 4 C 2 and 3 D 2 and 4
© UCLES 2022 0620/22/O/N/22 [Turn over
CHEMISTRY 0620/22
Paper 2 Multiple Choice (Extended) October/November 2022
45 minutes
You must answer on the multiple choice answer sheet.
*7173935082*
You will need: Multiple choice answer sheet
Soft clean eraser
Soft pencil (type B or HB is recommended)
INSTRUCTIONS
There are forty questions on this paper. Answer all questions.
For each question there are four possible answers A, B, C and D. Choose the one you consider correct
and record your choice in soft pencil on the multiple choice answer sheet.
Follow the instructions on the multiple choice answer sheet.
Write in soft pencil.
Write your name, centre number and candidate number on the multiple choice answer sheet in the
spaces provided unless this has been done for you.
Do not use correction fluid.
Do not write on any bar codes.
You may use a calculator.
INFORMATION
The total mark for this paper is 40.
Each correct answer will score one mark.
Any rough working should be done on this question paper.
The Periodic Table is printed in the question paper.
This document has 16 pages.
IB22 11_0620_22/4RP
© UCLES 2022 [Turn over
, 2
1 The rate of diffusion of three gases, ammonia, carbon dioxide and methane, is measured.
What is the order of the rate of diffusion of the gases from slowest to fastest?
A CO2 NH3 CH4
B CO2 CH4 NH3
C CH4 NH3 CO2
D NH3 CH4 CO2
2 Which description of Brownian motion is correct?
A random movement of particles due to bombardment by larger particles
B random movement of particles due to bombardment by smaller particles
C random movement of particles from a high concentration to a low concentration
D random movement of particles from a low concentration to a high concentration
3 The chromatogram obtained using four substances, J, K, L and M, is shown.
solvent front
baseline
J K L M
Which statement about M is correct?
A It is a mixture of J and K only.
B It is a pure substance.
C It is a mixture of J, K and L.
D It is a mixture of J, K and an unknown substance.
© UCLES 2022 0620/22/O/N/22
, 3
4 Which statements about isotopes of the same element are correct?
1 They are atoms which have the same chemical properties because they have the
same number of electrons in their outer shell.
2 They are atoms which have the same number of electrons and neutrons but
different numbers of protons.
3 They are atoms which have the same number of electrons and protons but different
numbers of neutrons.
A 1 and 2 B 1 and 3 C 2 only D 3 only
5 Which statement about solid magnesium oxide is correct?
A It is a giant structure made up of magnesium and oxygen atoms bonded covalently.
B It is an electrical conductor with mobile magnesium ions and oxygen ions.
C Magnesium loses electrons and these electrons move freely through a lattice.
D Oxygen ions and magnesium ions are attracted to each other in a giant lattice.
6 Which molecule contains only three shared pairs of electrons?
A CH3OH B Cl 2 C H2O D N2
7 Which particles are present in the structure of metals?
1 positive ions
2 negative ions
3 shared pairs of electrons
4 mobile electrons
A 1 and 2 B 1 and 4 C 2 and 3 D 2 and 4
© UCLES 2022 0620/22/O/N/22 [Turn over
