Pahang Trial 2024 Kimia Kertas 1

Kimia

Pahang Trial 2024 Kimia Kertas 1

• Percubaan Pahang
• 40 soalan
• Ada penerangan

1

A patient is diagnosed with thyroid cancer. Which isotope is used to treat the patient?

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A Carbon-14 B Sodium-24 C Cobalt-60 D Iodine-131

T4 Chapter 2.4 Isotopes and Its Uses

2

The following information is about atom T. - Number of protons is 3 - Nucleon number is 7 Which diagram shows the structure of atom T?

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A B C D

T4 Chapter 2.3 Atomic Structure

3

An atom of element E has 20 neutrons. The nucleon number of element E is 39. Atom E donates electrons to form ion E. How many electrons are in ion E?

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A 18 B 19 C 20 D 21

T4 Chapter 2.3 Atomic Structure

4

The following equation represents a chemical reaction. $$\text{Na}_2\text{CO}_3(aq) + \text{CaCl}_2(aq) \rightarrow \text{CaCO}_3(s) + 2\text{NaCl}(aq)$$ Which statement is correct?

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A Two moles of sodium carbonate react with one mole of calcium chloride B The products are solid calcium carbonate and sodium chloride solution C The reactants are solid sodium carbonate and calcium chloride solution D Two moles of calcium carbonate and one mole of sodium chloride are formed

T4 Chapter 3.4 Chemical Equation

5

Table 1 shows the electron arrangements of elements W, X, Y and Z. | Element | Electron arrangement | |---|---| | W | 2.4 | | X | 2.8 | | Y | 2.8.2 | | Z | 2.8.7 | Which element is a metal?

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A W B X C Y D Z

T4 Chapter 4.2 The Arrangement in the Periodic Table of Elements

6

Diagram 1 shows the position of element Y in the Periodic Table of Elements. Which of the following are the characteristics of element Y? I Dissolves in water II Forms coloured compounds III Has a low melting point IV Has more than one oxidation number

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

T4 Chapter 4.7 Transition Elements

7

Table 2 shows the proton numbers of elements W, X, Y and Z. | Element | W | X | Y | Z | |---|---|---|---|---| | Proton number | 3 | 6 | 11 | 12 | Which arrangement shows the atomic size of the elements in descending order?

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A Z, Y, X, W B W, X, Y, Z C X, W, Z, Y D Y, Z, W, X

T4 Chapter 4.2 The Arrangement in the Periodic Table of Elements

8

Which compound is formed by transferring electrons?

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A Oxygen, $\text{O}_2$ B Sodium oxide, $\text{Na}_2\text{O}$ C Carbon dioxide, $\text{CO}_2$ D Hydrogen peroxide, $\text{H}_2\text{O}_2$

T4 Chapter 5.2 Ionic Bond

9

Table 3 shows the electron arrangements of element Y and element Z. | Element Y | Element Z | |---|---| | 2.4 | 2.6 | What is the formula and the type of bond of the compound formed from the reaction between Y and Z? | | Formula | Type of bond | |---|---|---| | A | $\text{YZ}_2$ | Covalent | | B | $\text{YZ}_2$ | Ionic | | C | $\text{Y}_2\text{Z}$ | Covalent | | D | $\text{Y}_2\text{Z}$ | Ionic |

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A A B B C C D D

T4 Chapter 5.3 Covalent Bond

10

Which pair of acids is classified correctly? | | Monoprotic acid | Diprotic acid | |---|---|---| | A | Ethanoic acid | Hydrochloric acid | | B | Hydrochloric acid | Ethanoic acid | | C | Sulphuric acid | Nitric acid | | D | Nitric acid | Sulphuric acid |

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A A B B C C D D

T4 Chapter 6.3 Strength of Acids and Alkalis

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