FORM ONE CHEMISTRY REVISION SERIES
SERIES 01
TIME: 2:00 HOURS
INSTRUCTIONS
·
This paper consists of sections A and B.
·
Answer all questions in all section.
·
All writings must be in blue or black
ink except drawings which must be in pencil.
SECTION
A (20 MARKS)
Answer
all questions in this section
01. For
each of the items (i) – (x), choose the most correct answer from among the
given alternatives and write its letter in the answer sheet provided.
i.
A laboratory is a special room:
A.
Designed for chemical storage
B.
Designed for specimen
C.
Designed to carry out scientific
experiments
D.
For storing chemical apparatii
ii.
A good chemistry laboratory must have a
fume chamber in order:
A.
To allow students relax in the
laboratory
B.
To give leisure to students
C.
To allow poisonous fumes move out the
laboratory
D.
To ensure enough light in the laboratory
iii.
The following apparatii are used to
measure volumes of liquids in the laboratory:
A.
Measuring cylinder, beaker and burette
B.
Conical flask, burette and pipette
C.
Burette, pipette and measuring cylinder
D.
Conical flask, beaker and burette
iv.
Which among the following apparatii can
be used to grind chalk into powder?
A.
Spatula
B.
Safety pin
C.
Mortar and pestle
D.
Test tube brush
v.
Which among of the following is not a
feature of a good chemistry laboratory:
A.
It must have proper lighting
B.
It should have proper ventilation
C.
It must have no storage room
D.
It should have source of heat and water
vi.
Fainting is a suddenly loss of:
A.
Body weight
B.
Confidence
C.
Consciousness
D.
Competence
vii.
Who is a victim?
A.
A person with disability
B.
A person who is in need of money
C.
A person who has faced an accident
D.
An educated person
viii.
Why Fist Aid is important to a victim?
A.
Because a victim likes it
B.
Because it is cheap to provide
C.
Because it promotes recovery time
D.
Because it causes permanent disability
ix.
A student as a user of a chemistry
laboratory has to take note of the warning signs so as:
A.
To get correct results during
experiments
B.
To make friendship with teacher
C.
To be safe when working with chemicals
D.
To avoid chemical contact
x.
The labels on chemical containers must
be checked regularly to ensure that:
A.
The chemicals contain no impurities
B.
We don’t store empty bottles
C.
The chemicals have expired
D.
To avoid chemical contact
02. (a)
Match the apparatii in LIST A with their corresponding uses in LIST B
|
LIST A |
LIST B |
|
i.
Stop
watch ii.
Watch
glass iii.
Test
tube iv.
Beaker v.
Measuring
cylinder |
A.
Used
for observation of chemicals or specimen B.
Used
for heating small amount of chemicals for a short time C.
Used
for holding and heating chemicals D.
Used
to record time taken for complete reaction E.
Used
to measure fixed volumes of liquids F.
Used
to measure volume of different liquids in the laboratory |
2(b) Fill in the
blanks with the correct answers
i.
Burns caused by hot liquids or vapour
are called____________
ii.
An immediate help given to a victim
before taking him or her to hospital for further treatment is ____________
iii.
An apparatus that measures fixed volume
of liquids in the laboratory is ____________
iv.
An apparatus for chopping small amount
of substance is ____________
v.
A component of First Aid Kit used to
secure a bandage is ____________
vi.
A small box containing tool and
instruments for First Aid is ____________
vii.
A component in the First Aid Kit that is
used to take victim’s body temperature is called a ____________
viii.
A set of instructions on how the tools
and equipment found in the First Aid Kit are used is called ____________
ix.
An injury caused by a body coming into
contact with chemicals or hot substance is called ____________
x.
A chemical warning sign that indicates
the substance that catch fire easy is ____________
SECTION
B (80 MARKS)
Answer
all questions in this section
03. (a)
Define the following terms
i.
Chemistry
ii.
Science
iii.
Matter
iv.
Laboratory
(b) Mention four
agricultural chemicals that are produced in agriculture by the use of chemistry
knowledge.
(c) Who is a
person studying chemistry?
04. (a)
Most of students in secondary schools do not take chemistry simply because they
do not know the importance of subject. As a chemistry taker, what are the
importance of chemistry?
(b) Mention four
apparatii that can be used to measure volumes of different liquids in the
laboratory.
(c) What is the
function of soap as the component of the First Aid Kit?
05. (a)
Why is it important to take note of the warning signs?
(b) Draw and
give the meaning of the following warning signs.
i.
Corrosive
ii.
Toxic
iii.
Explosive
iv.
Flammable
06. (a)
Define the following terms
(b) Give any
four (4) differences of the two types of flame produced by the Bunsen burner.
(c) Why fridges
and freezers used in the laboratory must be labelled “FOR CHEMICAL USE ONLY”?
07. (a)
Give three (3) reasons to why non-luminous flame is the most used flame in the
laboratory.
(b) List any
five (5) importance of giving First Aid to a victim.
(c) In exception
of the Bunsen burner list any two (2) sources of heat that are used in the
laboratory.
08. (a)
Mention one (1) use of luminous flame and three (3) uses of non-luminous flame.
(b) List six
steps followed when solving a scientific problem.
09. (a)
With two (2) examples each, list the three states of matter.
(b) Study the
figure below and write the process represented by the letters A, B, C and D.
A –
B –
C –
D –
10. (a)
For the following changes of states of matter state whether is physical or
chemical change.
i.
Melting of snow
ii.
Rusting of iron
iii.
Drying of wet cloth
iv.
Burning of charcoal
(b) Give any
four (4) differences between physical and chemical change.
(c) Why do we study the changes of states of matter? (Any two reasons)
