SCIENCE FORM 5 CHAPTER 4

Quiz
•
Science
•
11th Grade
•
Hard
norasnita asmuni
Used 176+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Antara yang berikut, yang manakah paling tepat
menjelaskan maksud kadar tindak balas?
Which of the following best explains the meaning of
rate of reaction?
Kelajuan di mana semua bahan tindak balas
digunakan dalam masa yang diberikan
The speed at which all reactants are used up at
a given time
Perubahan dalam kuantiti bahan atau hasil
tindak balas per unit masa
Changes in the quantity of reactant or product
per unit of time
Perubahan kepekatan bahan tindak balas
per unit masa
Changes in the concentration of the reactant
per unit time
Perubahan yang dapat diperhatikan dan
diukur dengan mudah
Changes that can he easily observed and
measured
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Proses yang manakah mempunyai kadar tindak
balas yang paling tinggi?
Which process has the highest rate of reaction?
Fotosintesis
Photosynthesis
Respiration
Respiration
Pembakaran
Combustion
Rusting
Pembakaran
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Apabila magnesium bertindak balas dengan
asid hidroklorik, gas hidrogen dibebaskan.
45 cm3 gas hidrogen dibebaskan dalam masa
seminit. Berapakah kadar tindak balas purata?
When magnesium reacts with hydrochloric acid,
hydrogen gas is released. 45 cm ' of hydrogen gas is
released within a minute. What is the average rate
of reaction?
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Rajah 1 menunjukkan graf kuantiti hasil tindak
balas melawan masa.
Diagram I shows the graph of quantity of product
against time.
Antara A, B, C dan I), yang manakah
menunjukkan tindak balas perlahan?
Among A, B, C and D, which shows slow reaction
A
B
C
D
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Mengapakah pertambahan kepekatan larutan
natrium tiosulfat akan meningkatkan kadar
pembentukan mendakan kuning?
Why does an increase in the concentration of
sodium thiosulfate solution increases the rate of
formation of yellow precipitate?
Pertambahan tenaga kinetik
Increase in kinetic energy
Mengubah kadar sesuatu tindak balas kimia
Changes the rate of chemical reaction
Pertambahan bilangan zarah bahan tindak
balas
Increase in the number of particles of reactants
Jumlah luas permukaan (JLP) yang
terdedah yang lebih besar kepada tindak
balas
Larger total exposed surface area (TSA) to
reaction
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Antara set eksperimen berikut, yang
manakah menghasilkan kadar tindak balas
yang paling tinggi apabila bertindak balas
dengan asid sulfurik berlebihan?
Which of the following sets of experiments produces
the highest rate of reaction when reacted with
excess sulphuric acid?
5 g ketulan kalsium karbonat pada suhu 30 °C
5 g of calcium carbonate granules at 30 °C
5 g ketulan kalsium karbonat pada suhu 50 °C
5 g of calcium carbonate granules at 50 °C
5 g serbuk kalsium karbonat pada suhu 30 °C
5 g of calcium carbonate powder at 30 °C
5 g serbuk kalsium karbonat pada suhu 50 °C
5 g of calcium carbonate powder at 50 °C
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Antara yang berikut, yang manakah ciri suatu
mangkin?
Which of the following is a characteristic of
catalysts?
Tidak berubah secara kimia pada akhir
tindak balas
Does not change chemically at the end of the
reaction
Kuantiti mangkin berkurangan pada akhir
tindak balas
The quantity of catalyst decreases at the end
of the reaction
Mengubah kuantiti hasil tindak balas
dalam tindak balas
Change the quantity of the product in the
reaction
Kuantiti yang sama bagi mangkin dan
bahan tindak balas diperlukan
The same quantity of catalyst and reactant is
required
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