SPM Chemistry Trials '19 - Terengganu
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• Question 1
900 seconds
Q.

Which of the following substances consists of molecule?

Helium gas

Chlorine gas

Sodium carbonate

Copper(II) oxide

• Question 2
900 seconds
Q.

The proton number of atom R is 14 and its relative atomic mass is 28. Which statements is correct about R?

The mass of 1 atom R is 28g

The molar mass of R is 28g $mol^{-1}$

14g of R contains $6.0\ x\ 10^{23}\$ atoms

Atom R has 14 protons, 14 electrons and 28 neutrons

• Question 3
900 seconds
Q.

Diagram 1 shows the position of element X and element Y in the periodic table of elements. What is the chemical formula when element X reacts with element Y?

XY

XY2

Y2X

Y2X3

• Question 4
900 seconds
Q.

Which of the following substances can conduct electricity in molten state and aqueous solution?

Potassium chloride

Tetrachloromethane

Naphthalene

• Question 5
900 seconds
Q.

Diagram 2 shows the apparatus set-up of electrolysis X electrolyte. Which of the following is X used to light up a bulb?

Potassium sulphate

Silver chloride

Glacial propanoic acid

Pure methanol

• Question 6
900 seconds
Q.

Which of the following is true about weak acid?

Unable to neutralize alkali

The pH value is more than 7

Able to change red litmus paper to blue

Ionizes partially in water to produce hydrogen ions

• Question 7
900 seconds
Q.

Which of the following salts is probably salt X?

Aluminium chloride

Zinc nitrate

• Question 8
900 seconds
Q.

Which of the following are properties of glass?

I - Transparent

II - React with chemical

III - Can be cleaned easily

IV - Heat conductor

I and II only

I and III only

II and IV only

II and III only

• Question 9
900 seconds
Q.

Which method is the most suitable to increase the rate of reaction for the following equation?

4H2O2 --> O2 + 2H2O

Decrease the concentration of hydrogen peroxide

Decrease the temperature of hydrogen peroxide

Increase the volume of hydrogen peroxide

• Question 10
900 seconds
Q.

Which statement is correct about fats and oils?

Fats and oils are chemically different

Fats and oils are mixtures of organic acids and glycerol

Fats and oils are not important because they lead to health problems

Fats come from plants while oils come from animals

• Question 11
900 seconds
Q.

Which substance can be used to convert Fe3+ ions into Fe2+ ions?

Acidified potassium manganate(VII) solution

Copper

Silver

Sulphur dioxide gas

• Question 12
900 seconds
Q.

Which of the following is true of an exothermic reaction?

The container becomes hotter.

The temperature of the mixture decreases.

Heat energy is absorbed from the surroundings.

The heat energy is converted to kinetic energy.

• Question 13
900 seconds
Q.

What is the type of medicine for barbiturate?

Antibiotic

Antidepressant

Stimulant

Analgesic

• Question 14
900 seconds
Q.

Diagram 3 shows the graph of heating of solid Y. What is the boiling point of Y?

A

B

C

D

• Question 15
900 seconds
Q.

A balloon contains 12.04 x 1023 of gas particle. What is the number of moles of the gas in the balloon? [Avogadro's constant : 6.02 x 1023 mol-1]

0.5 mol

1.0 mol

2.0 mol

6.0 mol

• Question 16
900 seconds
Q.

Table 2 shows the electron arrangement of element R and Q. Element Q can form a compound with element R. What is relative molecular mass of the compound formed between element Q and R? [R.A.M.: Q= 35.5; R=12]

47.5

83

118.5

154

• Question 17
900 seconds
Q.

Table 3 shows the electron arrangement of elements P, Q, R and S. Which of the following pairs will form an ionic compound?

Q and P

S and Q

R and P

Q and P

• Question 18
900 seconds
Q.

Diagram 4 shows the apparatus set-up for an experiment to electroplate a nail with copper. After 20 minutes, the students found no changes to the nail. What changes should be made to the experiment for it to succeed?

Interchange the terminals in the cell

Increase the concentration of electrolyte

Rub the nail with sand paper

Decrease the cell voltage

• Question 19
900 seconds
Q.

Which of the following substances ionizes partially in water?

HCl

NaOH

CH3OH

CH3COOH

• Question 20
900 seconds
Q.

Based on the results of the experiment, salt X is:

Zinc chloride

Calcium carbonate

Aluminium sulphate

Magnesium chloride

• Question 21
900 seconds
Q.

A plastic bag is made from a polymer called polyethene. Which of the following is the property of plastic bag?

Good insulator

Non flammable

High tensile strength

• Question 22
900 seconds
Q.

The following equation represents the reaction between calcium carbonate and hydrochloric acid.

CaCO3 + 2HCL --> CaCl2 + CO2 + H2O

Which products is most suitable to be chosen to determine the rate of reaction?

Decreasing mass of calcium carbonate

Increasing mass of calcium chloride

Increasing volume of carbon dioxide

Increasing volume of water

• Question 23
900 seconds
Q.

A student wants to produce a rubber strip that is harder and resistant to heat. He dip the natural rubber strip in a beaker containing methylbenzene and substance Q. What is substance Q?

Ethanoic acid

Hydrogen chloride

Disulphur dichloride

Potassium hydroxide

• Question 24
900 seconds
Q.

Ionic equation for the reaction between zinc and copper(II) ions solution, Cu2+ is shown below.

Zn + Cu2+ --> Zn2+ + Cu

Based on the equation, which substance undergoes oxidation?

Zn

Cu2+

Zn2+

Cu

• Question 25
900 seconds
Q.

Diagram 5 shows the energy level diagram for the precipitation reaction of silver chloride. Which of the following is true about the reaction?

Endothermic reaction, heat is released.

Exothermic reaction, heat is absorbed.

Endothermic reaction, heat is absorbed.

Exothermic reaction, heat is released.

• Question 26
900 seconds
Q.

Two cleaning agents, soap and detergent are used to wash clothes in sea water and river water. Which of the following pair is correct about the results obtained?I

I and II

I and IV

II and III

III and IV

• Question 27
900 seconds
Q.

What is the nucleon number of atom shown?

11

12

22

23

• Question 28
900 seconds
Q.

Which of the following is true about the atoms of elements Y and Z?

Mass of one atom of Z is 18g

The number of protons in atom Y is 90

5 moles of Z have the same mass as 1 mole of Y

The density of one atom of Y is 5 times that of an atom of Z

• Question 29
900 seconds
Q.

Element Z is located in the same group as chlorine in the Periodic Table. Z is not the actual symbol of the element.

Which of the following statements are the chemical properties of element Z?

Reacts with water to produce alkaline solution

Reacts with sodium to produce a black solid

Reacts with sodium hydroxide to produce an acidic solution

Reacts with hot iron to form brown solid.

• Question 30
900 seconds
Q.

Diagram shows the electron arrangement of a carbon dioxide molecule. Which of the following is true?

One carbon atom contributes four electrons to be shared by two oxygen atoms.

Four double covalent bonds are formed in a carbon dioxide molecule.

Each oxygen atom contributes one electron for sharing.

One carbon atom requires two electrons to achieve the octet electron arrangement.

• Question 31
900 seconds
Q.

Table shows the observation for the reactions between metal N with two different salt solutions. Which of the following is correct ascending order of metal N, calcium and lead in the electrochemical series?

• Question 32
900 seconds
Q.

What are the products of the reaction between ethanoic acid and sodium oxide?

I - Water

II - Hydrogen

III - Ethyl ethanoate

IV - Sodium ethanoate

I and II

II and III

III and IV

I and IV

• Question 33
900 seconds
Q.

Diagram shows inland lake known as dead sea. In dry season, solid X is formed. During raining season all the solid X disappear. What are the properties of solid X?

I - Can be purified using recrystallization

II - Can conduct electricity in molten state

III - Consists of chloride and sulphate compounds

IV - Low melting and boiling point

I and II

I and III

II and III

III and IV

• Question 34
900 seconds
Q.

Which of the following is the most suitable catalyst and conditions required for production of ammonia in industry?D

A

B

C

D

• Question 35
900 seconds
Q.

The following equation represents the reaction between sodium thiosulphate and sulphuric acid.

Na2S2O3 + H4SO4 --> Na2SO4 + H2O + SO2 + S

20cm3 distilled water is added to the mixture. What is the difference of adding distilled water to the mixture compared to without adding distilled water?

Total volume of sulphur dioxide becomes higher

Concentration of sodium sulphate becomes higher

Total volume of water becomes higher

Time taken reaction complete is higher

• Question 36
900 seconds
Q.

When but-1-ene is shaken with bromine water, the brown bromine water is decolourised. What is the product of this reaction?

1,2-dibromobutane

2,3-dibromobutene

1,2-dibromobutene

2,3-dibromobutane

• Question 37
900 seconds
Q.

Diagram shows the results of an experiment to investigate the effect of metals on the rusting of iron.

Based on the result above, arrange iron, X and Y in increasing order of electropositivity.

X, iron, Y

Y, iron, X

Iron, X, Y

Iron, Y, X

• Question 38
900 seconds
Q.

Diagram 10 shows the energy profile diagram for a reaction between P and Q.

What is the value of X?

+100

+80

-180

+180

• Question 39
900 seconds
Q.

What is the additive added in detergent to improve the function of detergent as cleaning agent in hard water?

Lipase

Sodium hypochlorite

Sodium carbonate

Silicones

• Question 40
900 seconds
Q.

The properties of the element will change when across the period from left to right in the periodic table of element?

Which of the following show the changes?

Boiling point increase

Basic oxide property increase

Electric conductivity increases

Electronegativity increase

• Question 41
900 seconds
Q.

The electron arrangement of atom X is 2.8.5 and atom Y has 2 valence electrons. What is the type of bond and formula of compound formed between X and Y?

A

B

C

D

• Question 42
900 seconds
Q.

Table 8 shows information about four voltaic cells. What is the potential difference of the voltaic cell when metal B is paired with metal D?

1.0V

2.0V

2.5V

3.0V

• Question 43
900 seconds
Q.

A factory worker wants to remove the oxide layer on the surface of the steel used to make the body of a car. Which substance is suitable to be used for that purpose?

Soap

Detergent

Dilute hydrochloric acid

Dilute potassium hydroxide

• Question 44
900 seconds
Q.

Diagram 11 shows smoke released from a factory. The main substance in the smoke causes the soil in the area to become infertile. Which substance can be used to solve this problem?

Rice husk

Wood ash

Lake water

Table salt

• Question 45
900 seconds
Q.

The following information are some of the uses of a manufactured substance Z in industry. Which substance is suitable as Z?

Polymer

Ammonia

Sulphuric acid

Composite material

• Question 46
900 seconds
Q.

The reaction between nitric acid and magnesium is complete in 2 minutes and 5 seconds. Maximum volume of gas hydrogen produce is 50cm3. What is the average rate of reaction?

0.4 cm3s-1

2.0 cm3s-1

2.5 cm3s-1

10.0 cm3s-1

• Question 47
900 seconds
Q.

The molecular formula shown represents a food flavouring substance.

C3H7COOCH3

Which of the following can be used to make the flavouring?

Methanol and propanoic acid

Propanol and methanoic acid

Butanol and propanoic acid

Methanol butanoic acid

• Question 48
900 seconds
Q.

Diagram shows the apparatus set-up to study transfer of electrons at a distance. Which of the following occurs at carbon electrode X and Y respectively?

Y : Oxidation number of ferum changes from +2 to +3

X : Oxidation number of manganese changes from +7 to +3

Y : Brown solution changes to green

X : Purple solution change to colourless

Y : Iron(II) ion is oxidized

X : Manganate(VII) is reduced

Y : Mass of Y increases

X : Mass of X decreases

• Question 49
900 seconds
Q.

The reaction between 50cm3 0.1mol dm-3 sodium iodide solution and 50cm3 0.1mol dm-3 lead(II) nitrate solution releases 4200J of heat. What is the change in temperature of the mixture?

[Specific heat capacity of solution = 4.2 J g-1 C-1. Density of solution = 1g cm-3]

2.1 C

8.4 C

10.0 C

20.0 C

• Question 50
900 seconds
Q.

Which pairs are correctly matched?V

I and II

I and IV

II and III

III and IV

• Question 51
900 seconds
Q.

Thank you for studying!