Spm2004 p1

SPM 2004PAPER 1

1 The diagram shows the change of state of matter.

Which of the following is process X?A MeltingB BoilingC FreezingD Condensation

2 Aluminium oxide has both acidic and basic properties, therefore it isA a base oxideB an acid oxideC a metalloid oxideD an amphoteric oxide

3 The diagram shows the set-up of the apparatus for electrolysis.

Which of the following compounds could be used as an electrolyte?A EthanolB KeroseneC Ethyl ethanoateD Ethanoic acid

4 Which of the folowing is true about acids?A Acids react with metal to produce salt and water B Acids react with alkali to produce salt and hydrogen gas C Acids react with metal oxide to produce salt, water, and hydrogen gas D Acids react with carbonate of metal to produce salt, water, and carbon dioxide

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5 The diagram shows the crystalline structure of salt, NaCl.

Which of the following is not a characteristic of the crystal of NaCl?A It has sharp cornersB It has flat surfacesC It has an acute angle between the two adjacent surfaces D It has straight edges between two adjacent surfaces

6 The following chemical equation shows the reaction of the Haber process.Which of the following represent catalyst X, temperature Y and pressure Z?

Catalyst X Temperature Y/°C Pressure Z/atm

A Platinum 900 5

B Platinum 450 1

C Iron 900 450

D Iron 450 300

7 The body of the aeroplane shown in the figure below is made of alloy X.

What is alloy X?A PewterB BrassC BronzeD Duralumin

8 The diagram shows porcelain pots.

What is the substance and major component used in the making of porcelain pots?Substance Major component

A Glass CupronickelB ceramic Aluminium silicateC polymer Silicone dioxideD Alloy Iron(III) oxide

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9 Kaolin is used to make porcelain. A substance is added to kaolin to harden it.What is the substance?A SiliconeB FeldsparC Sodium oxideD Calcium carbonate

10 Which of the following substance can be used to differentiate ethane from ethene?A LimewaterB Bromine waterC Dilute sulphuric acidD Sodium hydroxide solutio

11. What are the products formed when ethanol burns completely in excess air?A Water and carbon dioxideB Water, carbon and carbon dioxideC Water, carbon monoxide gas and carbon dioxide gas D Water, carbon, carbon monoxide gas and carbon dioxide gas

12 The following chemical equation shows the conversion of ethanol to ethene.

Pieces of porcelainC2H5OH(l) C2H4 + H2O

What is the name of the process shown by the above equation?A Dehydration B OxidationC ReductionD Fermentation

13 Perfume contains esters.Which of the following is a property of an ester?A Dissolves in waterB Low boiling pointC More dense than waterD Can conduct electricity

14 The rate of reaction for the decomposition of hydrogen peroxide decreases with time becauseA product of reaction decreasesB temperature of hydrogen peroxide decreasesC volume of hydrogen peroxide decreases D concentration of hydrogen peroxide decreases

15 Which of the following is a redox reaction?A DisplacementB EsterificationC NeutralizationD Double decomposition

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16 Which of the following neutralization reactions releases the least heat?A Nitric acid and sodium hydroxide B Sulphuric acid and potassium hydroxide C Ethanoic acid and sodium hydroxide D Hydrochloric acid and potassium hydroxide

17 Which of the following is the function of an analgesic?A To calm down the emotion of the patientB To treat asthmaC To relieve painD To destroy bacteria

18 The information shows a part of the structural formula of a soap molecule.

CH3(CH2)14COO -

Which of the following is the name of that part?A LaurieB GlycerolC PalmitateD Alkylbenzene

19 The following equation represents a neutralization reaction.

Acid + Base → Salt + Water

Which pairs are reactants in neutralization reactions?I Sulphuric acid + Sodium hydroxide II Hydrochloric acid + Solid copper(II) oxideIII Sulphuric acid + Solid calcium carbonateIV Hydrochloric acid + Potassium carbonate solutionA I and II only B I and IV only C II and III only D III and IV only

20 Which of the following ions form a white precipitate that dissolves in excess sodium hydroxide solution?I A13+

II Mg2+

III Pb2+

IV Zn2+

A I and II onlyB II and IV onlyC I, II and III onlyD I, III and IV only

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21 The diagram shows the atomic symbol of element X.

X1123

Which of the following is true about the subatomic particles of element X?

Proton Number

Nucleon Number

ElectronConfiguration

A 11 23 2.8.1

B 11 23 2.8.8.5

C 23 11 2.8.1

D 23 11 2.8.8.5

22 The table shows the number of protons, electrons and neutrons of atoms Q and R.

Atom Number

Proton Electron Neutron

Q 11 11 12

R 12 12 12

Which of the following is true about atoms Q and R?A R can form a diatomic moleculeB Q and R have the same chemical properties C R reacts with Q to form an ionic compoundD Q reacts with water to release hydrogen

23 The table shows the relative atomic mass of elements Y and Z.

Which of the following is true about the atoms of elements Y and Z? A The mass of one atom of Z is 16 g B The number of protons in atom Y is 80 C 5 moles of Z have the same mass as 1 mole of Y D The density of one atom of Y is 5 times that of an atom of Z

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Element Relative Atomic Mass

Y 80

Z 16

SPM 2004PAPER 1

24 The information shows the sub-atomic particles of atom W.• Electron configuration 2.1• Number of protons 3• Number of neutrons 4

Which of the following diagrams shows an atom W?

A

B

C

D

25 The diagram shows the electron arrangement of a compound formed between atoms P and Q.

Which of the following statements is true about the compound?A It is an ionic compoundB The compound is formed by covalent bondsC The compound has a high boiling point D The compound is formed by electron transfer

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26 The diagram shows the set-up of the apparatus used to electroplate an iron key with copper.

What is observed at the anode and cathode after 30 minutes?

Anode Cathode

A Brown deposits formed Copper foil becomes thicker

B Copper foil becomes thinner Brown deposits formed

C Brown deposits formed Gas bubbles released

D Copper foil becomes thinner Gas bubbles released

27 The diagram shows the electron shells in the substance formed between atoms of hydrogen and Y.

What is the electron configuration of atom Y?A 2.4B 2.8C 2.8.4D 2.8.8

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28 The figure shows the structural formula of pent-1-ene.

Which of the following are structural formulae and correct names for isomers of pent-1-ene?

I

II

III

IV

A I and IV onlyB II and III only C I, II and IV only D I, II, III and IV

29 The table shows the results of a reaction between halogen and halide solution to determine the reactivity of the halogen.

HalogenHalide Chlorine Bromine Iodine

Potassium bromide Reaction occurs - No reaction

Potassium iodide Reaction occurs Reaction occurs -

The reactivity series of halogens in descending order isA bromine, chlorine, iodineB chlorine, bromine, iodineC iodine, bromine, chlorineD iodine, chlorine, bromine

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30 An experiment is carried out to study the rate of reaction between marble and hydrochloric acid to produce carbon dioxide gas.

Experiment Substances

IExcess marble and 50.0 cm3 of 2 mol dm-3 hydrochloric acid

IIExcess marble and 100.0 cm3 of 1 mol dm-3 hydrochloric acid

Which of the following graphs represents the two experiments?

A

B

C

D

31 The diagram represents the structural formula of a carbon compound.

The compound is produced by the reaction betweenA ethanol and propanoic acidB ethanol and butanoic acidC propanol and ethanoic acidD butanol and ethanoic acid

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32 Which of the following reactions shows that copper is oxidised?A Reaction of zinc with copper(II) oxide B Reaction of copper with silver nitrate solution C Electrolysis of copper(II) sulphate solution by using carbon electrodes D Chemical cell with copper and zinc electrodes in dilute sulphuric acid

33 The diagram shows the set-up of the apparatus for a displacement reaction.

What is observed after 10 minutes?A Gas bubbles are releasedB Brown deposits formedC The solution turns blueD The copper plate becomes thicker

34 The following equation shows the reaction between Ag+ and Cl- ions.

Ag+(aq) + Cl-1(aq) → AgCl(s) ΔH= -65 kJ mol-1

Which of the following is true about the above equation?A Endothermic reaction occursB Heat is released to the surroundingsC The temperature of the product decreases D 65 kJ of heat absorbed when 1 mole of silver chloride is formed

35 The table shows the heat of combustion of three alcohols.

Alcohol Heat of combustion/kJ mol-1

CH3OH 710

C2H6OH -1370

C4H9OH -2670

Which of the following factors increases the heat of combustion of alcohols?A Size of molecules decreasesB Number of carbon atoms per molecule increases C Number of oxygen atoms per molecule increases D Number of hydrogen atoms per molecule decreases

36 The diagram shows an oil layer on a water surface. The volume of the oil layer is

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0.001 cm3 and the surface area is 5 000 cm2.

Assuming that the oil layer is cylindrical, what is the thickness of the oil layer? A 2.0 x 10-7 cm B 5.0 x 10-6 cm C 5.0 x 106 cmD 2.0 x 107 cm

37 What is the number of molecules in 1 mole of ammonia, NH3?Use the information that the Avogadro constant = 6.0 x 1023 mol-1.A 1.5 x 1023 moleculesB 6.0 x 1023 molecules C 1.2 x 1024 molecules D 2.4 x 1024 molecules

38 A compound with formula X2CO3 relative formula mass of 138. What is the relative atomic mass of X? Use the information that the relative atomic mass of C = 12 and O = 16.A 39B 69C 78 D 110

39 The diagram shows the set-up of the apparatus of a simple chemical cell.

What are metals X and Y?

Metal X Metal YA Aluminium MagnesiumB Lead AluminiumC Aluminium CopperD Lead Zinc

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40 The equation shows the reaction between sulphuric acid and sodium hydroxide.

H2SO4 + 2NaOH → Na2SO4 + 2 H2O

What is the volume of 1.0 mol dm3 sodium hydroxide solution which can neutralize 25.0 cm3 of 1.0 mol dm-3 sulphuric acid?A 12.5 cm3

B 25.0 cm3

C 50.0 cm3

D 75.0 cm3

41 The table shows the mass of elements M and O in an oxide, and the relative atomic mass of elements M and O.

Element M OMass/g 5.6 2.4

Relative atomic mass

56 16

The empirical formula for oxide of M isA M2O3

B M2OC MO2

D MO

42

Which of the following substances A, B, C or D in the Periodic Table is suitable to be used in the lamps?

A D

B C

43 The ionic formulae of elements X and Y are as follows:

X3+ Y2-

The compound formed from the reaction of ions of elements X and Y has the formulaWhich of the following ionic equations represents the reaction?A X3+ + Y2- → X2Y3

B 2 X + 3 Y → X2Y3

C 2 X3+ + 3 Y2- → X2Y3

D 3 X3+ + 2 Y2- → X2Y3

44 3.2 g of copper(II) oxide powder is reacted with excess dilute nitric acid.What is the mass of copper(II) nitrate formed in the reaction?

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A restaurant owner wants to use colourful electric lamps to attract customers.

SPM 2004PAPER 1

Use the information that the relative atomic mass of N = 14, O = 16 and Cu = 64.A 3.76 gB 4.96 gC 5.04 gD 7.52 g

45 The reaction between hydrochloric acid and zinc produces hydrogen gas. The reaction is complete in 50 seconds and the maximum volume of gas produced is 25 cm3.What is the average rate of the reaction?A 0.5 cm3 s-1

B 1.0 cm3 s-1

C 2.0 cm3 s-1

D 4.0 cm3 s-1

46 The table shows the mass of sulphur trioxide formed at different temperatures during the Contact process.

Temperature/ °C 300 400 500 600Mass of sulphur trioxide/kg

350 200 120 100

Time taken 5 hours 2 hours 6 minutes 9 minutes

At what temperature is the production rate of sulphur trioxide the highest?A 300 °CB 400 °CC 500 °CD 600 °C

47 What is the oxidation number of manganese in the ion MnO4-?

A +2B +3C +7D +8

48 Yogurt is prepared by adding 20.0 cm3 of lime juice into 200.0 cm3 of fresh milk. It is found that the temperature of the yogurt increases by 2.0 °C.What is the total amount of heat released? Use the information that the specific heat capacity of yogurt = X J g-1 oC-1. Assume that 1 cm3 of solution is equal to 1 gram of solution. A 40X J B 220X J C 400X J D 440X J

49 The following equation shows the combustion of heptane, C7H16, in excess oxgen

C7H16(l) + 11 o2(g) → 7 CO2(g) + 8 H2O ΔH = -5 512 kJ mol-1

The combustion of heptane in excess oxygen releases 1 378 kJ of energy.

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What is the mass of heptane used? Use the information that the relative atomic mass of H = 1 and C = 12.

A 25.0 gB. 36.0 gC 77.0 g D 88.0 g

50 The table shows information about three simple cells.

Pair ofmetals

Potential difference / V

Metal at negative terminal

X and copper 0.45 X

Y and copper 1.30 Y

Z and copper 0.56 Cu

What is the potential difference of the pair of metals Y and Z?A 0.85B 1.01C 1.86D 2.31

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