Download and practise with this ZIMSEC O-Level Chemistry Paper 1 June 2024 question paper. Useful for exam revision, past paper practice, and preparation in Zimbabwe.
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This is the ZIMSEC O-Level Chemistry question paper for Paper 1 from June 2024. Use it for exam practice under timed conditions. The paper code is 4024/1. Time allowed: 1 hour.
# ZIMBABWE SCHOOL EXAMINATIONS COUNCIL <br> General Certificate of Education Ordinary Level
**CHEMISTRY**
**PAPER 1 Multiple Choice**
**JUNE 2024 SESSION**
Additional materials:
Multiple Choice answer sheet
Soft clean eraser
Soft pencil (type B or HB is recommended)
Electronic calculator
### INSTRUCTIONS TO CANDIDATES
Write your name, centre number and candidate number on the answer sheet in the spaces provided unless this has already been done for you.
There are forty questions in this paper. Answer all questions. For each question, there are four possible answers, A, B, C and D. Choose the correct answer and record your choice on the separate answer sheet.
### INFORMATION FOR CANDIDATES
A copy of the Periodic Table is printed on page 19.
**This question paper consists of 19 printed pages and 1 blank page.**
Copyright: Zimbabwe School Examinations Council, J2024.
[Turn over
## Question 1
The diagram shows part of a burette.
What reading is shown on the diagram?
A \(16.25 \mathrm{~cm}^{3}\)
B \(16.20 \mathrm{~cm}^{3}\)
C \(16.29 \mathrm{~cm}^{3}\)
D \(17.75 \mathrm{~cm}^{3}\)
## Question 2
An ion of an element \(\mathbf{X}\) is represented as follows.
Which statement about \(\mathbf{X}\) is true?
A Y is the nucleon number.
B \(\quad \mathrm{Z}\) is the atomic number.
C W is the proton number.
D W is the charge on the ion.
## Question 3
The diagram shows the structure of a neutral atom of an element.
How many protons does the atom have?
A 6
B 7
C 13
D 12
## Question 4
The diagram shows the atomic structure of a neutral atom of an element \(z\).
To which group of the periodic table does element \(\boldsymbol{z}\) belong ?
A 2
B 5
C 7
D 3
## Question 5
Which row correctly describes the states of the substances at room temperature and pressure?
| | solid | liquid | gas |
| :---: | :---: | :---: | :---: |
| A | mercury | carbon dioxide | napthalene |
| B | Mercury | napthalene | carbon dioxide |
| C | napthalene | mercury | carbon dioxide |
| D | carbon dioxide | napthalene | mercury |
## Question 6
Which property shows that calcium is not a transition element?
A Its compounds are soluble in water.
B Its compounds are coloured in solution.
C Its compounds are white when solid.
D It has a very high density.
## Question 7
The diagram shows a fractional distillation plant for distilling crude oil.
Which fraction has compounds with the highest boiling point range?
A petroleum gas
B kerosene
C bitumen
D lubricating oil
## Question 8
The diagram shows a simple cell.
Which combination of metals would allow electrons to flow in the direction shown?
| | X | Y |
| :--- | :--- | :---: |
| A | copper | lead |
| B | iron | zinc |
| C | lead | iron |
| D | zinc | iron |
## Question 9
The diagram shows results obtained when aqueous sodium hydroxide was added to solution X and heated.
Which ion was present in solution X ?
A \(\mathrm{NO}_{3}\)
B \(\mathrm{SO}_{4}{ }^{2-}\)
C \(\mathrm{NH}_{4}{ }^{+}\)
D \(\mathrm{Pb}^{2+}\)
## Question 10
The equation shows the dissolution of ammonium chloride.
\(\mathrm{NH}_{4} \mathrm{Cl}_{(\mathrm{s})}+(\mathrm{aq}) \longrightarrow \mathrm{NH}_{4(\mathrm{aq})}^{+}+\mathrm{Cl}_{(\mathrm{aq})}\)
Which diagram \(\mathbf{A}, \mathbf{B}, \mathbf{C}\) or \(\mathbf{D}\) shows the energy profile for the dissolution?
A
A
C. energy
D. energy
## Question 11
Which pair of ions causes hardness in water ?
A \(\mathrm{Ca}^{2+}\) and \(\mathrm{Zn}^{2+}\)
B \(\mathrm{Ca}^{2+}\) and \(\mathrm{Mg}^{2+}\)
C \(\mathrm{Mg}^{2+}\) and \(\mathrm{Na}{ }^{+}\)
D \(\mathrm{Mg}^{2+}\) and \(\mathrm{Zn}^{2+}\)
## Question 12
Which statement is true about the electrolysis of dilute sulphuric acid ?
A amount of sulphuric acid remains unchanged
B sulphate ions are discharged at the anode
C hydroxide ions are discharged at the cathode
D hydroxide ions remain in the electrolyte
## Question 13
Which option gives the correct catalyst for the given process ?
| | process | catalyst |
| :--- | :--- | :--- |
| A | hydrogenation | platinum |
| B | ostwald | vanadium (v) oxide |
| C | contact | nickel |
| D | haber | iron |
## Question 14
Which is not a use of carbon dioxide gas ?
A refridgerant
B extinguishing fire
C as a preservative in fizzy drinks
D as a fuel in welding
## Question 15
Which property of lime makes it useful in agriculture?
A has high melting point
B is slightly soluble in water
C is basic in nature
D conducts electricity in molten state
## Question 16
Which one is not a product of destructive distillation of coal ?
A coke
B coal gas
C ammonia liquor
D carbon dioxide
## Question 17 …