Sarawak Trial 2026 Chemistry Kertas 1 · Set 1

Chemistry

Sarawak Trial 2026 Chemistry Kertas 1 · Set 1

• Sarawak 州试卷 Set 1
• 40 题
• 附解析

1

Which pair is correctly matched?

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A Isotope: Sodium-24; Uses: Radiotherapy for the treatment of cancer B Isotope: Hydrogen-3; Uses: To detect the leakage of underground pipe C Isotope: Lead-210; Uses: To determine the age of sand and earth layers D Isotope: Cobalt-60; Uses: As a detector to study the sewage and liquid wastes

T4 Chapter 2.4 Isotopes and Its Uses

2

Which atom is used as the standard reference for determining the relative atomic mass of elements?

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A Hydrogen-1 B Oxygen-16 C Sodium-24 D Carbon-12

T4 Chapter 3.1 Relative Atomic Mass and Relative Molecular Mass

3

Diagram 1 shows a camera. What is gas X?

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A Argon B Krypton C Neon D Xenon

T4 Chapter 4.3 Elements in Group 18

4

Diagram 2 shows the observation to study the electrical conductivity of zinc. Which of the following statements is correct about electrical conductivity of zinc?

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A Has metal atoms are arranged closely packed and orderly B Has hydrogen bond between the molecules C Has a sea of electrons that move freely. D Has freely moving ions

T4 Chapter 5.6 Metallic Bond

5

Diagram 3 shows the apparatus set-up for the preparation of salt. Which salt is prepared through this method?

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A AgNO₃ B BaSO₄ C CaCl₂ D Na₂CO₃

T4 Chapter 6.9 Preparation of Salts

6

Which of the following pairs is correctly matched?

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A Low rate of reaction: Rock erosion; High rate of reaction: Burning of fireworks B Low rate of reaction: Ignition of matches; High rate of reaction: Burning of fireworks C Low rate of reaction: Rock erosion; High rate of reaction: Fermentation D Low rate of reaction: Ignition of matches; High rate of reaction: Fermentation

T4 Chapter 7.1 Determining Rate of Reaction

7

Diagram 4 shows a chandelier which is made from glass P. What is the property of glass P?

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A High refractive index B Low expansion coefficient C Cannot withstand high temperatures D Sensitive to light intensity

T4 Chapter 8.2 Composition of Glass and Its Uses

8

Diagram 5 shows a high-performance brake disc used in a motorcycle. The brake disc is made of a type of ceramic. Which of the following is correct about the properties of the ceramic? I High resistance to heat II Resistant to abrasion III Withstand thermal shocks IV Hard and strong

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A I and II B I and III C II and III D III and IV

T4 Chapter 8.3 Composition of Ceramics and Its Uses

9

A student wants to bring back latex from a rubber estate in a solid form. Which of the following substances can coagulates latex?

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A Ethanol B Ammonia C Methanoic acid D Sodium hydroxide

T5 Chapter 4.2 Natural Rubber

10

Diagram 6 shows the shoe for a marathon runner. The shoe sole is made of material X so that it is more durable. Which of the following is the correct match about material X?

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A Synthetic rubber: Styrene-butadiene; Properties: Abrasion resistance and high heat resistance B Synthetic rubber: Silicone rubber; Properties: Oxidation resistance and high heat resistance C Synthetic rubber: Neoprene; Properties: High heat resistance and inert D Synthetic rubber: Thiokol; Properties: Oil and solvent resistance

T5 Chapter 4.3 Synthetic Rubber

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