Others Trial 2024 Chemistry Kertas 1 · SBP

Chemistry

Others Trial 2024 Chemistry Kertas 1 · SBP

• Trial SBP
• 40 questions
• With explanations

1

Which of the following substances exists as molecules at room temperature?

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A Chlorine B Potassium C Carbon D Krypton

T4 Chapter 4.5 Elements in Group 17

2

Who is the scientist that discovered the electron?

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A Niels Bohr B J. J. Thomson C James Chadwick D Ernest Rutherford

T4 Chapter 2.2 The Development of the Atomic Model

3

Which of the following statements explains why carbon-12 was chosen as the standard atom to determine the relative atomic mass and relative molecular mass?

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A Carbon is easy to handle B Carbon is an inert element C Carbon has three isotopes D Carbon is a non-metal element

T4 Chapter 3.1 Relative Atomic Mass and Relative Molecular Mass

4

Diagram 1 shows the apparatus set-up to determine the empirical formula of magnesium oxide. Which of the following steps is correct to ensure that the magnesium ribbon is burnt completely?

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A Rub the magnesium ribbon with sandpaper B Open the crucible lid at intervals during heating C Heat the magnesium ribbon strongly in the covered crucible D Repeat the heating, cooling and weighing process until a constant mass is obtained

T4 Chapter 3.3 Chemical Formula

5

Which of the following are the uses of helium gas? - I. Used in weather balloons - II. Used in the oxygen tanks of divers - III. Used in lasers for eye retina treatment - IV. Used in the flashlights of cameras

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

T4 Chapter 4.3 Elements in Group 18

6

Which of the following substances produces a yellow colour when universal indicator is added to it?

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A Milk B Blood C Tomato D Soap

T4 Chapter 6.2 pH Value

7

Diagram 2 shows the formation of the metallic bond in magnesium. What is Y?

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A Ion B Atom C Proton D Electron

T4 Chapter 5.6 Metallic Bond

8

Nickel powder is used as a catalyst for the hydrogenation of ethene. How does the catalyst increase the rate of the reaction?

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A Lowers the activation energy of the reaction B Increases the kinetic energy of the reactant particles C Increases the total number of reactant particles D Breaks the double bonds between carbon atoms in ethene molecules

T4 Chapter 7.4 Collision Theory

9

The National Monument of Malaysia is made of an alloy. Which of the following substances are the components of the alloy?

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A Iron and carbon B Iron and chromium C Copper and zinc D Copper and tin

T4 Chapter 8.1 Alloy and Its Importance

10

Which of the following are the properties of ceramics? - I. Electrical insulator - II. Chemically inert - III. Hard but brittle - IV. Low heat resistance

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

T4 Chapter 8.3 Composition of Ceramics and Its Uses

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