Johor Trial 2024 Chemistry Kertas 1 · Batu Pahat

Chemistry

Johor Trial 2024 Chemistry Kertas 1 · Batu Pahat

• Johor Trial Batu Pahat
• 40 questions
• With explanations

1

Table 1 shows the proton number of elements P, Q, R and S. | Element | P | Q | R | S | |---|---|---|---|---| | Proton number | 7 | 8 | 17 | 15 | Which pair of elements has the same number of valence electrons?

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A P and Q B P and S C Q and R D Q and S

T4 Chapter 2.3 Atomic Structure

2

Which diagram shows the weakest attraction between particles?

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A B C

T4 Chapter 2.1 Basic Concepts of Matter

3

A patient has been diagnosed with cancer. Which isotope is used to treat cancer?

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A Carbon-14 B Sodium-24 C Phosphorus-32 D Cobalt-60

T4 Chapter 2.4 Isotopes and Its Uses

4

Which of the following gases contains 0.6 mol of atoms at room temperature and pressure? [Molar volume of gas = 24 dm³ mol⁻¹ at room conditions]

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A 4.8 dm³ of neon B 4.8 dm³ of nitrogen C 4.8 dm³ of sulphur trioxide D 4.8 dm³ of carbon dioxide

T4 Chapter 3.2 Mole Concept

5

Diagram 1 shows the chemical formula of potassium hexacyanoferrate(II) trihydrate. $\text{K}_4\text{Fe(CN)}_6 \cdot 3\text{H}_2\text{O}$ What is the relative mass of this compound? [Relative atomic mass: H = 1, C = 12, O = 16, K = 39, Fe = 56, N = 14]

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A 141 B 256 C 389 D 422

T4 Chapter 3.1 Relative Atomic Mass and Relative Molecular Mass

6

Diagram 2 shows an illustration of a conversation between atom P and atom Q. What is the type of chemical bond that will be formed between atom P and atom Q?

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A Ionic B Metallic C Dative D Covalent

T4 Chapter 5.3 Covalent Bond

7

Diagram 3 shows the apparatus set-up to determine the empirical formula of a metal oxide. Which of the following metals uses the same method to determine its empirical formula?

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A Tin B Iron C Zinc D Copper

T4 Chapter 3.3 Chemical Formula

8

Which of the following illustrations shows the formation of hydrogen bonds between molecules?

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A B C D

T4 Chapter 5.4 Hydrogen Bond

9

Which of the following particles are formed from a dative bond? I. $\text{H}_3\text{O}^+$ II. $\text{NH}_4^+$ III. $\text{NO}_3^-$ IV. $\text{CH}_3\text{COO}^-$

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

T4 Chapter 5.5 Dative Bond

10

Diagram 4 shows the electron arrangement in compound JL. Which elements are represented by J and L? | | J | L | |---|---|---| | A | Lithium | Sulphur | | B | Lithium | Chlorine | | C | Beryllium | Oxygen | | D | Magnesium | Oxygen |

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A A B B C C D D

T4 Chapter 5.2 Ionic Bond

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