This document contains a 15-question chemistry exam for Form 4 students in Malaysia. The questions cover topics like compounds, physical and chemical processes, atomic structure, the periodic table, and chemical formulas. Students are asked to choose the best answer from four multiple choice options for each question.

1. UJIAN SELARAS BULAN MAC
KIMIA
TINGKATAN 4
NAMA :_________________________ TINGKATAN :_______________
BAHAGIAN A
Each question is followed by four alternative answers, A, B, C or D. For each question, choose one
answer only.
Tiap-tiap soalan diikuti oleh empat pilihan jawapan, A, B, C dan D. Bagi setiap soalan, pilih satu
jawapan sahaja.
1. Which substance is a compound?
Bahan yang manakah merupakan suatu sebatian?
A Carbon B Air
Karbon Udara
C Water D Gold
Air Emas
2. Which of the following physical processes involve the release of heat energy?
Antara proses fizikal berikut, yang manakah melibatkan pembebasan tenaga haba?
A Boiling B Melting
Pendidihan Peleburan
C Condensation D Evaporation
Kondensasi Penyejatan
3. Table 1 shows the number of protons and neutrons of four elements.
Jadual 1 menunjukkan bilangan proton dan neutron bagi empat unsur.
Element
Unsur
Protons
Proton
Neutrons
Neutron
P 6 8
Q 7 7
R 6 7
S 8 8
Table 1/Jadual 1
Which of the following elements are isotopes?
Antara berikut yang manakah merupakan isotop?
A P and R B Q and S
P dan R Q dan S

2. C Q and R D R and S
Q dan R R dan S
4. Which of the following shows the electron arrangement of an atom of 31
P?
Antara yang berikut, yang manakah menunjukkan susunan electron bagi atom 31
P?
A 2.8 B 2.8.1
C 2.8.2 D 2.8.5
5. What is the mass of 1x1023
molecules of ethanol, C2H5OH?
[Avogadro constant = 6.02x1023
mol-1
]
Berapakah jisim bagi 1x1023
molekul etanol, C2H5OH?
[Pemalar Avogadro = 6.02x1023
mol-1
]
A 5.50 g B 6.22 g
C 7.05 g D 7.64 g
6. What is meant by the relative atomic mass?
Apakah yang dimaksudkan oleh jisim atom relative?
A The average mass of one atom of the element when compared with  of the mass
of a carbon-12 atom.
Jisim purata untuk satu atom unsur apabila dibandingkan dengan  jisim atom
karbon-12.
B The average mass of one atom of the element when compared with 12 times the
mass of a carbon-12 atom.
Jisim purata untuk satu atom unsur apabila dibandingkan dengan 12 kali jisim atom
karbon-12.
C The average mass of one atom of the element when compared with  of the mass
of a carbon-14 atom.
Jisim purata untuk satu atom unsur apabila dibandingkan dengan  jisim atom
karbon-14.
D The average mass of one atom of the element when compared with 12 times the
mass of a carbon-14 atom.
15
15
1
12
1
12
1
12
1
12

3. Jisim purata untuk satu atom unsur apabila dibandingkan dengan 12 kali jisim atom
karbon-14.
7. Diagram 1 shows the symbols for the atoms of element X and element Y.
Rajah 1 menunjukkan simbol atom bagi unsur X dan unsur Y.
Diagram 1/Rajah 1
What is the number of neutrons in an atom of element X and element Y?
Berapakah bilangan neutron dalam atom bagi unsur X dan unsur Y?
X Y
17 11
18 12
35 23
17 12
8. If 56 g of ethane gas burns completely in excessive oxygen, what is the volume of carbon
dioxide released at STP?
[Molar volume : 22.4 dm3
mol -1
at STP; Relative atomic mass: H = 1; C = 12]
Jika 56 g gas etana dibakar dengan lengkap dalam oksigen berlebihan, berapakah isi padu
karbon dioksida yang dibebaskan pada STP?
[Isi padu molar : 22.4 dm3
mol -1
pada STP; Jisim atom relatif : H = 1; C = 12]
A 69.6 dm3
B 79.6 dm3
C 83.8 dm3
D 99.6 dm3
9. Diagram 2 shows the spacing of molecules in a substance at two different temperatures.
Rajah 2 menunjukkan ruang antara molekul-molekul dalam suatu bahan pada dua suhu
yang berbeza.
X
35
17
Y
23
11
A
B
C
D

4. At -120 o
C/pada -120 o
C At -30 o
C/pada -30 o
C
Diagram 2/Rajah 2
Which of the following is correct about the melting point and boiling point of the substance?
Antara yang berikut, yang manakah betul tentang takat lebur dan takat didih bahan
tersebut?
Melting Point (o
C)
Takat lebur (o
C)
Boiling Point (o
C)
Takat didih (o
C)
-80 -10
-100 -20
-110 -40
-150 -45
10. Table 2 shows the melting and boiling points of substances P, Q, R dan S.
Jadual 2 menunjukkan takat lebur dan takat didih bahan P, Q, R dan S.
Substance
Bahan
Melting point
Takat lebur
Boiling point
Takat didih
P -25 5
Q 50 300
R -256 -192
S 10 140
Table 2/Jadual 2
Which of the following substances is liquid at room temperature?
Antara bahan berikut, yang manakah merupakan cecair pada suhu bilik?
A P B Q
C R D S
11. Which of the following substances is made up of atoms?
Antara bahan berikut, yang manakah terdiri daripada atom?
A Magnesium B Nitrogen gas
Magnesium Gas nitrogen
C Lead (II) iodide D Naphthalene
Plumbum (II) iodide Naftalena
12. The following statement is about an atom.
Pernyataan berikut adalah mengenai atom.
A
B
C
D

5. Which of the following scientists made the statement?
Antara saintis berikut, yang manakah membuat kenyataan tersebut?
A J.J. Thomson B Neils Bohr
C Ernest Rutherford D James Chadwick
13. Diagram 3 shows the symbol of X atom.
Rajah 3 menunjukkan simbol atom X.
Diagram 3/Rajah 3
Which are the correct proton number and nucleon number of atom X?
Antara berikut, nombor proton dan nombor nukleon yang manakah betul untuk atom X?
Proton number
Nombor proton
Nucleon number
Nombor nukleon
17 18
18 17
17 35
35 17
14. What is the definition of a mole?
Apakah definisi suatu mol?
A The volume occupied by 6.02x1023
particles.
Isi padu yang dipenuhi 6.02x1023
zarah.
B The atomic mass of substance which consists of 6.02x1023
atoms.
Jisim atom suatu bahan yang mengandungi 6.02x1023
atom.
C The molecular mass of substance which consists of 6.02x1023
molecules.
Jisim molekul suatu bahan yang mengandungi 6.02x1023
molekul.
D The quantity of a substance which has the same number of particles as the number
atoms in 12.00 g karbon-12 .
Kuantiti suatu bahan yang mempunyai bilangan zarah sama banyak dengan
bilangan atom dalam 12.00 g karbon-12.
15. Diagram 4 shows a part of Periodic Table of Elements.
Rajah 4 menunjukkan sebahagian Jadual Berkala Unsur.
The mass of an atom is concentrated in the nucleus
which contains positively charged particles.
Jisim bagi suatu atom tertumpu dalam nukleus yang
mengandungi zarah bercas positif
X
35
17
A
B
C
D

6. Diagram 4/Rajah 4
What are the electron arrangements for atoms of elements X and Y?
Apakah susunan elektron atom-atom bagi unsur X dan Y?
X Y
2.1 2.7
2.1 2.8.7
2.8.1 2.7
2.8.1 2.8.7
A
B
C
D

7. Diagram 4/Rajah 4
What are the electron arrangements for atoms of elements X and Y?
Apakah susunan elektron atom-atom bagi unsur X dan Y?
X Y
2.1 2.7
2.1 2.8.7
2.8.1 2.7
2.8.1 2.8.7
A
B
C
D