Selangor Trial 2026 Chemistry Kertas 1 · PINTAS Set 1

Chemistry

Selangor Trial 2026 Chemistry Kertas 1 · PINTAS Set 1

• Selangor Trial PINTAS Set 1
• 40 questions
• With explanations

1

Which substance is a matter?

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A Heat B Water C Light D Sound

T4 Chapter 2.1 Basic Concepts of Matter

2

Which of the following reactions has the lowest rate of reaction?

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A The rusting of an iron gate B The combustion of magnesium ribbon C The reaction between hydrochloric acid and zinc D The neutralisation reaction between an acid and an alkali

T4 Chapter 7.1 Determining Rate of Reaction

3

Diagram 1 shows the standard representation of element W. > ³⁵₁₇W Which of the following is true about W?

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A Atom W has 18 neutrons B The electron arrangement of atom W is 2.7 C W exists as solid at room temperature D W is in Group 7 and Period 3 in the Periodic Table of Elements

T4 Chapter 2.3 Atomic Structure

4

Which of the following occurs in oxidation reaction?

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A Loss oxygen B Loss electron C Gain hydrogen D Decrease in oxidation number

T5 Chapter 1.1 Oxidation and Reduction

5

The following statement refers to the contributions of scientist in the development of the Periodic Table of Elements. - Studied the frequency of X-ray released by various elements and eventually found a relationship between the X-ray spectrum and proton numbers. - Arranged the elements in Periodic Table of Elements according to their increasing proton numbers. Who was the scientist?

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A Lothar Meyer B Henry Moseley C John Newlands D Dmitri Mendeleev

T4 Chapter 4.1 The Development of the Periodic Table of Elements

6

Diagram 2 shows the experimental apparatus involving naphthalene, C₁₀H₈. Which of the following obtained from the arrangement of the apparatus in Diagram 2?

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A Melting point B Freezing point C Boiling point

T4 Chapter 2.1 Basic Concepts of Matter

7

Which of the following is a covalent compound?

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A Sodium chloride B Carbon tetrachloride C Magnesium chloride D Ammonium nitrate

T4 Chapter 5.3 Covalent Bond

8

Diagram 3 shows floor tiles made from ceramics. What property of ceramics makes them suitable for this use?

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A Hard and heat resistant B Malleable C Good conductor of electricity D Does not easily rusts

T4 Chapter 8.3 Composition of Ceramics and Its Uses

9

What is the main composition of glass?

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A Silicon dioxide B Calcium carbonate C Sodium chloride D Aluminium oxide

T4 Chapter 8.2 Composition of Glass and Its Uses

10

Diagram 4 shows the reaction between compound X with bromine water. Bromine water becomes colourless when added to compound X. What happens when compound X reacts with acidified potassium manganate(VII) solution?

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A Purple colour turns colourless B Purple colour remains C Blue colour is formed D A white precipitate is formed

T5 Chapter 2.3 Chemical Properties and Interconversion of Compounds Between Homologous Series

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