Name:
Class:
Topical Quiz
Topic 7: Periodic Table of Element
Section A
1
Diagram 1 shows the structure of an atom.
4
Diagram 3 shows an axe used for cutting
wood.
P
R
Q
Diagram 1
What are the charges of P, Q, and R?
A
B
C
D
P
Negative
Negative
Positive
Positive
Q
Positive
Neutral
Negative
Neutral
R
Neutral
Positive
Neutral
Negative
Diagram 3
What is the characteristic of metal used
to make the axe?
A Malleable
B Electric conductor
C Low melting point
D Can conduct heat
5
2
A
B
Which of the following is a compound?
Iron
C Carbon
Salt
D Oxygen
3
Diagram 2 shows an element found in the
Periodic Table.
X
6
C
12
A
B
C
D
Diagram 2
What is represented by X?
Proton number
Nucleon number
Number of neutrons
Number of electrons
Diagram 4 shows copper wire coated with
plastic protector.
Copper wire
Diagram 4
What is the purpose of the copper wire
coated with plastic protector?
A Copper is a good heat insulator
B Copper is weak thermal insulator
C Copper is a good electrical conductor
D Copper is a weak electrical conductor
6
Ali accidentally mixed distilled water with
alcohol. What is the separation method
can Ali use if he wants to recover the
alcohol?
A Filtration
B Distillation
C Sedimentation
D Chromatography
7
Diagram 5 shows a beaker containing a
mixture of chalk powder and water.
Mixture of chalk
powder and water
A
B
C
D
Diagram 5
Why can the mixture be separated?
Water is denser than chalk powder
Water has higher melting point than chalk
powder
Chalk powder is insoluble in water and
denser than water
Chalk powder has a lower boiling point
than water
9
I
II
III
IV
Choose the correct examples of
chemical changes.
Photosynthesis
Condensation
Water boiling
Rusting of iron
A
B
C
D
I and II
III and IV
II and III
I and IV
10
Which of the following is matched
correctly?
A
8
Diagram 6 shows a method to separate a
compound.
B
Water + Sulphuric acid
Electrode
C
Battery
I
II
III
IV
A
B
C
D
Diagram 6
Which of the following statements are true?
Hydrogen gas is produced at the negative
electrode
Oxygen gas is produced at the cathode
Hydrogen gas is produced at the anode
Water consists of the combination of
hydrogen and oxygen
I and II
III and IV
II and III
I and IV
Physical change
Chemical change
Forms a new
substance
Does not form a
new substance
The properties of
the substances
and products are
different
The chemical
composition of
the substances
and products
remain the same
The properties of
the substances and
products remain
the same
The chemical
composition of the
substances and
products are
different
Needs more
energy
Needs less energy
D
Section B
1
(a) Diagram 1 shows the particles contained in two types of substances, R and S. (2 marks)
R:
S:
Diagram 1
Label substances R and S by using the words given below.
Mixture
Element
Compound
(b) Mark (✓) two differences between substance R and S.(2 marks)
(i) Substance R can be separated physically whereas substance S cannot
be separated physically.
(ii) There is no new substance formed in substance R whereas a new
substance is formed in substance S.
(iii) Formation of substance R needs more energy whereas formation of
substance S needs less energy.
(iv) The ratio of elements in substance R is fixed whereas the elements in
substance S can present in any ratios.
2
(a) Fill in the blanks with the correct answers. (2 marks)
(i) Zinc is strong, and it is used in making ______________________.
(ii) Iodine is used as _______________________ to prevent injuries from bacterial infection.
(b) Match the following substances with their correct characteristics. (2 marks)
Substance
Characteristic
Has a high boiling point
To decolorise colour
Strong and malleable
Section C
3
(a) Diagram 2.1 shows a type of fertiliser containing substance T.
Diagram 2.1
Based on Diagram 2.1, explain why substance T is classified as a compound.
(2 marks)
(b) Diagram 2.2 shows a beaker containing liquid U.
Substance T
Diagram 2.2
Based on Diagram 2.2, explain why liquid U is categorised as mixture.
(2 marks)
(c) Diagram 2.3 shows an electrical technician is testing the presence of electric current in a
socket by using a test pen.
Diagram 2.3
Explain briefly how the electrical technician can avoid electrical shock when testing a socket.
(2 marks)
(d) Naufal put a mixture of muddy water into a bottle. The mixture is left for about 30 minutes.
Diagram 2.4 shows his observation after 30 minutes.
Mud
Diagram 2.4
(i) Name the process shown in the above diagram.
(1 mark)
(ii) If the mud is replaced with chalk powder, can the mixture be separated by using the method
above. Explain why.
(2 marks)
(iii) Explain why a mixture of fine salt and water cannot be separated using the method above?
(1 mark)