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CHEMISTRY
Paper 1
2 hours
July 2025
INTER ISLAMIC SCHOOLS
JOINT MOCKS ASSOCIATION
(IJMA)
Uganda Certificate of Education
CHEMISTRY
Paper 1
2 Hours
Name:.......................................................................
Index:......................................................................
INSTRUCTIONS
This paper consists of two sections A and B
It has 6 items
Section A has two compulsory items
Section B has four items from two parts. Answer one item from
each part.
Answer four items in all
Answers to section A must be written in the spaces provided
while those in B must be answered in the booklet(s) provided
Mathematical tables and silent non-programmable calculators may
be used
Where necessary: C=12, H=1, 0=16., 1 mole of a gas occupies
22.4dm3at s.t.p
For Assessors‛ Use Total
Only
Item 1 2 3 4 5 6
Score
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SECTION A
Answer both items in this section.
1. In order to enhance performance, athletes have to be physically well. An athlete
in senior two is experiencing chronic pain and inflammation in the muscular
skeletal system due to poor training. He has tried different herbal remedies but
was not effectively treated. He wants to seek better medication in order to
treat it effectively, safely and quickly and thus approached you for guidance.
Task
As a learner of chemistry,
a) Identify the best alternative product he can use.
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b) Explain to him the function of the product
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c) Advise him on the side effects associated with the product.
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d) Make an evaluation of the two products.
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2. Ethanol is one of the common beverages consumed by many Ugandans. In order
to ensure its availability, a bioethanol plant in kakira was set up to produce it
from fermented sugarcane with minimal environmental impacts7KHSODQW·V
furnace burns 10.8kg of ethanol per minute to produce steam and carbon dioxide
as per the equation below.
2CH3OH(l) + 3O2(g) ื 2CO2(g) + 4H2O(g)
Your fellow students are interested in knowing the amount of gas that is produced
in the plant per minute and have approached you for guidance.
Task
Using your chemistry knowledge,
a) Explain
i) the categories of the products formed during combustion
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ii) the properties of substances in the same category above.
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b) Calculate the volume of the carbon dioxide produced per minute at s.t.p.
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c) Advise on the impacts of one of the products to the environment.
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SECTION B
PART I
Answer one item from this part in the answer booklet provided
3. Chlorine is an important substance that is used as a raw material in the
production of various pharmaceuticals. A chemical plant is built to produce
chlorine to be used in pharmaceutical industries. The plant aims to achieve zero
carbon emissions and also benefit the society at large.
However, many Ugandans lack knowledge on how the production process and its
benefits can be achieved with minimal impacts to the environment. Your fellow
colleagues are also interested in understanding the same and have approached
you for guidance.
Task
As a learner of chemistry, make a write up that will benefit your classmates and the
rest of the Ugandans.
4. Lime is one of the building materials that is used in Uganda. A construction
company is planning to build a new highway in a mountainous region, which
requires large quantities of lime to stabilize the soil and prevent landslides,
therefore a new production plant is to be established to ensure sufficient supply
of lime.
However, the science club of the school is interested in understanding how the
production process will be done and how the impacts created will be mitigated in
order to enjoy the benefits and have approached you for advice.
Task
Make a write up that will be of a message that will benefit them.
PART II
Answer one item from this part in the answer booklet provided
5. Uganda discovered significant oil reserves in Hoima district and has announced
plans to build a pipeline to transport oil from albert region to the coast for
export. However, the activity will create potential risks to the Albertine water
which is a sensitive ecosystem, raising concerns about environmental
degradation. The ministry of energy has thus started sensitization of people
through radio talks where your school has been invited to make a presentation
and you have been chosen among the presenters.
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Task
Make a write up of a message that you will present.
6. Rocks and minerals are part of the resources that are of benefit to Ugandans.
A construction company is planning to build a new high way through a
mountainous region. The project will require blasting and excavation of rocks to
create a path for the highway. However, the residents are worried on the
potential impacts that will be created, the chairperson of the community has
therefore organized a sensitization meeting and your school has been invited.
Your teacher has chosen you among the speakers since you have chemistry
knowledge.
Task
Make a write up of the message that you will deliver.
END
