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Pahang Trial 2022 Chemistry Kertas 1 · Jerantut

1
Which of the following is an example of matter?
2
Diagram 1 shows the arrangement of particles of a substance that undergo change in the physical state through process Y Which of the following substances undergo process Y? I. Bromine II. Iodine III. Chlorine IV. Naphthalene
3
Diagram 2 shows the standard represented for sodium-23 Which of the following statements is correct for Na^+ ion?
4
Table 1 below shows the melting and boiling points of substances P, Q, R and S. Which substances is a liquid at roon temperature?
5
Which of the following pairs are matched correctly?
6
Which of the following pairs of physical properties of magnesium chloride is true?
7
The equation below represent the reaction to extract aluminium from aluminium oxide 2Al_2O_3 -> 4Al + 3O_2 What is the mass of aluminium that can be extracted from 102 g aluminium oxide.
8
Which of the following are the special characteristics of transition elements I. Form coloured compounds II. Can be used as a catalyst III. Have a low melting point IV. Have only one oxidation number
9
The following statement refer to the contributions of scientist in the development of the Periodic Table. - Studied the frequency of X-ray released by various elements and eventually found in a relationship between the X-ray spectrum and proton numbers. - The arranged the elements in Periodic Table of Elements according to their increasing proton numbers. Who was the scientist?
10
Which characteristics is correct about elements in Group 1 in the Periodic Table as going down the group?
11
Which of the following substances is a monoprotic acid?
12
1.08 g of element X combines with y g of oxygen to form a metal oxide with the empirical formula X_2O_3.What is the value of y? (Relative atomic mass : X = 27, O = 16)
13
The relative molecular mass of M_2(SO_4)_3 is 342.What is the relative atomic mass of element M? (Relative atomic mass : O = 16, S = 32 )
14
Table 2 shows the condition of reactants used in experiment I and experiment II. Which graph shows the correct curve for experiment I and experiment II?
15
Diagram 3 shows a chemical cell. The electrons move from electrode L to electrode M through the circuit. Which statement is correct about the reaction in the chemical cell?
16
Which of the following is incorrect about catalyst?
17
Which of the following is the name of the theory which is used to explain how different factors affect the rate of a reaction?
18
Diagram 4 shows the apparatus set-up to study the transfer of electron at a distance. Which of the following occurs in Diagram 4?
19
The following equation shows the conversion of butanol to butane. C_4H_9OH \xrightarrow{\text{Proses X}} C_4H_8 + H_2O \text{Process X} \text{Panaskan} \text{Heat} Apakah proses X ? What is process X?
20
Which of the following is a base?
21
Which of the following is a salt that does not dissolve in water?
22
Which of the following is the characteristic of hydrogen chloride gas that enables its acidic properties to be shown?
23
What is the pH value of sodium hydroxide 0.1 mol dm⁻³?
24
Heating of zinc nitrate produces brown gas. What is the gas?
25
Faizal wants to prepare 250cm^3 of 0.3 mol dm^-3 sodium hydroxide solution. What is the mass of sodium hydroxide does Faizal need to produce the solution? (Relative atomic mass : Na = 23, O = 16, H = 1)
26
Excess zinc powder is reacted with 100cm^3 of 0.1 mol dm^-3 hydrochloric acid. What is the volume of gas produced at room condition? (1 mol of gas occupies 24dm^3 at room condition)
27
A series of tests are conducted to verify the cation and anion that is present in a salt solution. Table shows the observation for each test. Which of the following is the cation present in the salt solution?
28
Advanced ceramics are made from inorganiccompounds such as oxides, carbides and nitrides. Which of the following is made from advance ceramics?
29
Diagram 5 shows a spectacle made from a type of glass. The spectacle can protect our eyes from dangerous ultraviolet (UV) rays. Which of the following substance is the chemical used in the glass?
30
What is the general formula of alkenes?
31
Diagram 6 shows a flower that has a plesant fragrance. What is the name of the substance that gives the pleasant fragrance?
32
Diagram 7 shows the apparatus set-up to study the reactivity of a metal with oxygen. The colour of the product formed is yellow when hot and white when cold. What is the metal?
33
The following ionic equation represents the reaction between acidified potassium dichromate(VI) solution and iron(II) sulphate solution. Cr_2O_7^{-2} + 14H^+ + 6Fe^{2+} \rightarrow 6Fe^{3+} + 2Cr^{3+} + 7H_2O What is the change of oxidation number of chromium in the reaction?
34
Diagram 8 shows a water droplet on a piece of iron. Which equation occur at the cathode
35
Which cation forms scum with soap?
36
Which substance is used to change iron (III) ion to iron (II) ion?
37
Diagram 9 shows an energy level of a reaction. What is the type of the reaction?
38
Diagram 10 shows a glass containing two layers of substances Which food additive is the most suitable to be added to ensure both substances are mixed?
39
The thermochemical equation represents the reaction between nitric acid and potassium hydroxide solution. HNO_3 + KOH -> KNO_3 +H_2O ; \Delta H = -57 kJ mol^-1 What is the heat released when 50 cm^3 of 2.0 mol dm^-3 nitric acid is added to 25 cm^3 of 2.0 mol dm^-3 potassium hydroxide solution?
40
A diprotic acid, H_2X has a concentration of 1.0 mol dm^-3. What is the volume of H_2X needed to neutralise 25.0 cm^-3 of 1.0 mol dm^-3 sodium hydroxide solution, NaOH?
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