Test Chemistry F4

1. 1
SMK BANDAR UTAMA DAMANSARA (2)
TEST 1 2018
CHEMISTRY FORM 4
Nama : ………………………………………………… Markah :
Kelas : ………………......
Masa : 1 jam 30 minit
ARAHAN AM :
Kertas ini mengandungi 10 halaman bercetak.
Section A
Instruction: For Question 1 to Question 30, each question is followed by four options, A, B, C and D. Choose
one correct answer for each question. Circle the corresponding answerson page 5.
1. Which country did the word ‘chemistry’
came from
A. Arab
B. Germany
C. Japan
D. France
2. Why is chemistry important to the life of
humankind?
A. Chemistry determines the composition
of air on earth.
B. Chemistry investigates about the
scientific processes that occur daily.
C. Chemistry increases the human
capacity in the industry.
D. Chemistry determines a person’s
career.
3. Which of the following chemical substances
and its uses is true?
I NaCl - energy source
II CH3COOH - used in vinegar
III CaCO3 - marble
A. I and II only
B. II and III only
C. I and III only
D. I, II and III only
4. What is the correct sequence of steps in the
scientific method?
A. Observation → Inference →
Conclusion → Hypothesis
B. Observation → Inference →
Hypothesis → Conclusion
C. Observation → Hypothesis →
Inference → Conclusion
D. Inference → Observation →
Hypothesis → Conclusion
5. Diagram 1 shows a change in the states of
matter.
Diagram 1
What is the process that has occurred?
A. Melting
B. Boiling
C. Condensation
D. Sublimation

2. 2
6. Which of the following occurs when liquid
naphthalene is cooled at room temperature?
A. The particles move faster
B. The contents of energy increases
C. The arrangement of particles is not in
order
D. The attraction forces between particles
Increase
7. Solid Y is heated in a boiling tube and the
temperature is recorded at regular time
intervals. If the melting point of Y is 78C,
which graph represents the heating curve of
Y?
A.
B.
C.
D.
8. The statement below is one of the atomic
model theory,
Which of the following scientists proposed
the theory?
A. James Chadwick
B. John Dalton
C. J.J. Thomson
D. E. Rutherford
9. The atom of element G has a proton
number 18 and a nucleon number of 32.
How many neutrons are there in an atom
of element G?
A. 18
B. 50
C. 14
D. 32
10. An isotope of an atom R has 17 protons
and 20 neutrons in its nucleus. What
symbol is correct for the ion of R?
A. 
R37
17
B. 
R37
20
C. 
R17
37
D. 
R20
17
11. The proton number of element Y is eight.
The nucleon number of Y is 18. How
many protons, neutrons and electrons
does an Y2-
ion contain?
Protons Neutrons Electrons
A 10 8 10
B 8 8 10
C 10 10 10
D 8 10 10
The existence of neutrons, the neutral
particles in the nucleus

3. 3
12. The mass of one mole of the substance in
grams is the meaning for
A. Mole
B. Molar mass
C. Relative atomic mass
D. Number of particle
13. The atomic number of calcium is 20. The
electronic structure of the calcium ion can
be represented as
A. 2.8
B. 2.8.4
C. 2.8.8
D. 2.8.8.2
14. What is the number of atoms in 1.5 moles
of sulphur dioxide, SO2?
[The Avogadro number= 6.02xl023
mol-1
]
A. 6.02xl023
B. 1.5 x 6.02xl023
C. 1.5 x 2 x 6.02xl023
D. 1.5 x 3 x 6.02xl023
15. Substance T has the following properties:
What is the physical state of T at 130 °C?
A. Gas
B. Liquid
C. Solid
D. Gas and liquid
16. How many moles of molecules are there in
0.22 g of carbon dioxide, CO2? [Relative
atomic mass: C = 12, O = 16]
A. 0.005
B. 0.008
C. 6.16
D. 9.68
17. Which of the following is a use of cobalt-
60 isotope?
A. Sterilisation of insects
B. X-ray for body examination
C. Treatment of cancer
D. Dating for the age of fossils and
artifacts
18. The average mass of magnesium atom is
24 times greater than of the mass of a
carbon-12. What is the relative atomic
mass of magnesium?
A. 2
B. 12
C. 24
D. 48
19. The relative formula mass hydrated X
carbonate, X2CO3. 10H2O is 286. What is
the relative atomic mass of element X?
[Relative atomic mass: H= l, C=12,O=16 ]
A. 120
B. 140
C. 23
D. 46
20. Diagram 2 shows three different
substances.
Diagram 2
Which of the following is true about
the substances in Diagram 2?
I. 1 mol of solid X contains the same
number of particles as in 1 mol of
liquid Y.
II. The mass of 1 mol solid X is the
same as the mass of 1 mol of
liquid Y.
III. The mass of 1 mol of solid X is
more than the mass of 1 mol of
liquid Y.
IV. 1 mol of solid X, 1 mol of liquid Y
and 1 mol of gas Z contain
6.02×1023
particles respectively.
The melting point is 73 °C
The boiling point is 140 °C

4. 4
A. I and IV
B. I, II and III
C. I, II and IV
D. I, II, III and IV
21. Diagram 3 shows an incorrect way of set-
up of apparatus to study the melting point
of naphthalene.
Diagram 3
Which of the following needs to be done
to carry out the experiment?
A. Replace the water with alcohol.
B. Put a thermometer in the test tube.
C. Heat the test tube directly without
using the beaker.
D. Move the test tube up so that only a
part of naphthalene is surrounded by
water.
22. The diagram shows the electron
arrangement of the Q-
ion.
What is the number of valence electrons of
a Q atom?
A. 7
B. 8
C. 9
D. 10
23. The empirical formula of a carbon
compound is CH2. Its relative molecular
mass is 56. Find the molecular formula of
the compound. [Relative atomic mass:
H=1; C=12]
A. C4H6
B. C4H8
C. C2H4
D. C3H6
24. Which compound has the correct
formula?
Compound Formula
A Calcium chloride Ca2Cl
B Zinc chloride ZnCl
C Copper(I) oxide CuO
D Iron(III) chloride FeCI3
25. Figure shows an atomic symbol for
element X
Nucleus of X atom contains
A. 13 neutron and 14 proton
B. 13 proton and 14 neutron
C. 13 electron and 14 proton
D. 13 proton and 27 neutron
26. Which of the following substances has
the correct relative molecular mass?
[Relative atomic mass: H= 1; O = 16; Na
= 23; S = 32; K = 39; Cr = 52; Fe = 56;
Mg = 24]
Substances
Relative
molecular mass
A MgSO4.7H2O 248
B FeSO4.7H2O 165
C K2Cr2O7 294
D Na2S2O3.5H2O 184
27
13
X

5. 5
27. Find the volume of 1.42 g of chlorine
gas, Cl2 in cm3
, at STP.
[Relative atomic mass: Cl = 35.5]
A. 448
B. 896
C. 4480
D. 8960
28. 30 cm3
of N2 react with 60 cm3
of O2 at
room temperature and pressure of 1
atmosphere. How many moles of oxygen
are used in this reaction?
A. 0.0035 mole
B. 0.0055 mole
C. 0.0045 mole
D. 0.0025 mole
29. How many hydrogen atoms are present in
4 g of methane gas, CH4?
[Relative atomic mass: C=12; H=1;
Avogadro number = 6.02 X 1023
gmol-1
]
A. 0.25 X 6.02 X 1023
atoms
B. 2.50 X 6.02 X 1023
atoms
C. 10.0 X 6.02 X 1023
atoms
D. 1.0 X 6.02 X 1023
atoms
30. Which compound does not have the
empirical formula of CH2O?
A. Ethanol, CH3CH2OH
B. Glucose, C6H12O6
C. Methanol, HCHO
D. Methyl methanoate, HCO2CH3
ANSWER : SECTION A
1. A B C D
2. A B C D
3. A B C D
4. A B C D
5. A B C D
6. A B C D
7. A B C D
8. A B C D
9. A B C D
10. A B C D
11. A B C D
12. A B C D
13. A B C D
14. A B C D
15. A B C D
16. A B C D
17. A B C D
18. A B C D
19. A B C D
20. A B C D
21. A B C D
22. A B C D
23. A B C D
24. A B C D
25. A B C D
26. A B C D
27. A B C D
28. A B C D
29. A B C D
30. A B C D