Set 1 Kimia Gerak Gempur

SULIT Gerak Gempur SPM 2007

JABATAN PELAJARAN PERAK

GERAK GEMPURSIJIL PELAJARAN MALAYSIA 2007

CHEMISTRY

Paper 1

One hour and fifteen minutes

DO NOT OPEN THE QUESTION PAPER UNTIL YOU ARE TOLD TO DO SO

This question paper consist of 14 printed pages

4541/1 SULIT 1

4541/1 Gerak GempurChemistry2007Set 1Paper 11¼ hours


INFORMATION FOR CANDIDATES

1. This question paper consists of 50 questions.2. Answer all questions.3. Answer each question by blackening the correct space on the answer sheet.4. Blacken only one space for each question.5. If you wish to change your answer, erase the blackened mark that you have

made. Then blacken the space for the new answer.6. The diagrams in the questions provided are not drawn to scale unless stated.7. You may use a non-programmable scientific calculator.

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1 When iodine sublimes, the particles

A move further apartB shrink to a smaller sizeC vibrate and rotate about their fixed positionsD lose energy to the surroundings

2 What happens to the particles when a liquid turns to solid?

A The particles become lighter.B The particles able to move randomly.C The distance between the particles is shorter.D The kinetic energy of the particles becomes higher.

3 Which of the following correctly describes the relative charges of the subatomic particles?

Proton Nucleon ElectronA +1 +1 - 1B - 1 0 +1C +1 -1 0D +1 0 - 1

4 Which of the following statements is TRUE about the isotopes of an element?

A Isotopes have the same number of protons B Isotopes are atoms of different element C Isotopes have the same number of neutronsD Isotopes have different chemical properties

5 The diagram shows the atomic structure of an atom of P.

Which of the following is the correct electron arrangement for the ion of P? A 2.8B 2.8.1C 2.8.2D 2.8.8

6 What is the number of molecules in 1 mol of water, H2O?[ Avogadro constant : 6.02 x 1023 mol-1 ]

A 2.01 x 1023 moleculesB 3.01 x 1023 moleculesC 6.02 x 1023 molecules

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D 1.806 x 1024 molecules7 Which of the following elements are in Group 17 in the Periodic Table of

elements?

A Chlorine and argonB Chlorine and oxygen C Chlorine and bromine D Oxygen and nitrogen

8 Which of the following statements about the element in Group 1 is true ?

A Group 1 elements form diatomic moleculesB Group 1 elements do not react in cold waterC Group 1 elements are chemically unreactiveD Group 1 elements form chlorides with the formula of XCl

9 The diagram shows the symbol of Lithium atom and Flourine atom.

How ionic bond can be formed between these two atoms ? A A Fluorine atom donates one electron to a atom of Lithium. B A Lithium atom donates one electron to an atom of Fluorine. C A Lithium atom shares one electron with an atom of Fluorine. D A Lithium atom and a Fluorine atom donate one electron each.

10 Why an element has a tendency to combine with other elements?

A To get the formula.B To show the reactivity.C To make a chemical reaction.D To form a compound that are more stable.

11 An ionic nitrate compound has the formula X(NO3)2 .What is the possible proton number of atom X?

A 6B 9C 10D 12

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7

Li3

19

F9


12 The diagram shows the set up of apparatus of an electrolytic cell

A current was passed through concentrated aqueous lithium chloride, LiCl. Which of the followings is correct?

Ions moving towardsThe cathode (negative) The anode ( positive)

ABCD

Li+ Li+ Li+ and H+ Li+ and H+

Cl- and OH-

Cl- Cl- Cl- and OH-

13 Which of the following substances is an acid?

A ToothpasteB Lemon juiceC Liquid detergentD Coconut milk

14 Which of the following pH values is correct for water, acid and alkali ?

Water Acid AlkaliA pH = 7 pH > 7 pH < 7B pH > 7 pH = 7 pH < 7C pH < 7 pH > 7 pH = 7D pH = 7 pH < 7 pH > 7

15 Which of the following statements is the best to desribe an acid ?

A An acid is a chemical substance that has a bitter taste.B An acid is a chemical substance that contains hydrogen atoms.C An acid is a chemical substance that ionises completely in water .D An acid is a chemical substance that ionises in water to produce free

hydrogen ions

16 Which of the following sulphate salts is insoluble in water?

A Sodium sulphateB Zink sulphateC Lead(II) sulphate

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Concentrated aqueous lithium chloride

Carbon Electrode


D Ammonium sulphate17 Which of the following substances are products of decomposition of

lead(II) nitrate by heat?I Lead(II) oxideII WaterIII Nitrogen dioxideIV Oxygen

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

18 An alloy consists of two or more …………..

A elements combined physically.B elements combined chemically.C compounds combined physically.D compounds combined chemically.

19 The diagram shows the steps involved in the manufacture of sulphuric acid. J K L M

Which of the following steps requires the used of a catalyst ?

A JB KC LD M

20 A mixture of silica and boron oxide is heated at a high temperature.What is the type of glass formed?

A Soda lime glassB Borosilicate glassC Lead crystal glassD Fused silica glass

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Sulphur Sulphurdioxide

Oxygen

OleumSulphurtrioxide

Sulphuricacid


21 Which of the following electron arrangements for an atom is the most stable?

A B

C D

22 Substance R has a melting point of -7 oC and boiling point of 59 oC. Which of the following temperatures will R exists as a solid ?

A - 20 oCB 0 oCC 40 oCD 100 oC

23 Which of the following substances contains the highest number of atoms ?[ Relative atomic masses : H, 1; He, 4; 0, 16; Ar, 40 ]

A 4 g hydrogenB 8 g heliumC 16 g oxygenD 20 g argon

24 X is used in filling weather ballons and airship Y is an atom with electron arrangement 2.8

Which of the following statements is true about X and Y ?

A X and Y exist as diatomic moleculesB X and Y have a stable electron arrangementsC X and Y react with oxygen to form oxidesD X and Y react to form covalent compound

25 The diagram shows part of the Periodic Table of the Elements

PQ R

S

Which of the following is the correct order in the increasing size of the atom of the element P,Q,R and S ?

A P,R,Q,S B P,Q,R,S C S,Q,R,P

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D S,R,Q,P 26 The information below is about element R.

Which of the following is true about R ?

A Atom of R forms R3+ ion B Atom of R has 4 valence electrons C The standard representation of atom R is

D Element R is placed in Group 14 in the Periodic Table of an element

27 The diagram represents the electron arrangement for the compound when atom of X combines with atom of Y.

2+ 2-

X Y

What is the number of electrons for atom Y? A 6B 8C 10D 12

28 The table shows the electron arrangements of four elements represented by the letters P, Q, R and S.

Element P Q R SElectron arrangement

2.6 2.8.2 2.8.4 2.8.7

Based on the information given, which of the following pair of elements will form a covalent compound with the formula XY2 ?

A Q and RB Q and SC R and PD R and S

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Atom R has 14 neutron Nucleon number of element R is 27

27 R14


29 The table shows information about two voltaic cells.

Pairs of metals Potential difference / V Metal at negative terminal

X and copperY and copper

0.451.30

XY

What is the potential difference of the pair of metals X and Y?

A 0.85 VB 0.95 VC 1.10 VD 1.75 V

30 The diagram shows the set up of apparatus of an electrolytic cell.

Which of the following graphs show the changes in mass of the cathode during electrolysis ?

A

B

C

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Copper(II) sulphate solution

Copper Electrode

Time / sec

Mass /g

Time / sec

Mass /g

Time / sec

Mass /g


D

31 Which of the following substances is soluble in water and produces an alkaline solution?

A Zink oxideB Sodium oxideC Carbon dioxideD Sulphur trioxide

32 The table shows the pH values of five solutions P, Q, R, S and T.

Aqueous solution (1.0 mol dm-3) P Q R S TpH value 3 5 7 11 13

Which combination of solutions when mixed together at the suitable volumes will produce a neutral solution?

A P and QB S and TC P, Q and RD P, Q and T

33 Double decomposition method is used to prepare insoluble salts. Which of the followings is a double decomposition equation used in preparing insoluble salt?

A 2KI + Pb(NO3)2 2KNO3 + PbI2

B 2HCl + PbO PbCl2 + H2OC Na2SO4 + Mg(NO3)2 MgSO4 + 2NaNO3

D NaOH + K2CO3 Na2CO3 + 2KOH

34 When sodium hydroxide is added to solution X , a white precipitate is formed. The precipitate is insoluble in excess sodium hydroxide.The cation present in solution Y could be

A Al3+

B Mg2+

C Zn2+

D Pb2+

35 Which of the followings is a synthetic polymer ?

A PerspexB StarchC Naphtalene D Natural rubber

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Time / sec

Mass /g


36 An atom of element X has a mass equals to two molecules of nitrogen.What is the relative atomic mass of X ?[ Relative atomic mass : N, 14 ]

A 14B 28C 56D 84

37 How many atoms of helium have a mass equals to three molecules of oxygen ?[ Relative atomic masses : He,4 ; O, 16 ]

A 4B 8C 12D 24

38 Relative molecular mass of Ca(YO3)2 is 164.What is the relative atomic mass of element Y ?[ Relative atomic masses : O, 16; Ca, 40 ]

A 14B 28C 76D 124

39 The chemical equation below represents the extraction process of aluminium from aluminium oxide. 2Al2O3 4Al + 3O2

What is the volume of oxygen gas can be liberated from 7.65 g of aluminium oxide?[ Relative atomic masses : O, 16; Al, 27 ; Molar volume of any gas : 24.0 dm3 mol-1 at room condition ]

A 0.8 dm3

B 1.2 dm3

C 1.8 dm3

D 2.7 dm3

40 Element X combines with oxygen to form an oxide of X. The table shows the mass of elements X and O used and their corresponding relative atomic mass.

Element X OMass/ g 8.4 3.6

Relative atomic mass 56 16What is the empirical formula for this oxide ?

A XO

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B XO2

C X2O3

D X2O5

41 Aluminium reacts with lead (II) oxide to produce aluminium oxide and lead.If 4.0g of aluminium is reacted with 0.09 mole of lead (II) oxide,What is the mass of aluminium left after the reaction occurred ?[ Relative atomic masses : 0, 16; Al, 27; Pb, 207 ]

A 1.57 gB 1.62 gC 2.38 gD 2.43 g

42 The diagram shows the descending order of metal X, metal Y and metal Z in electrochemical series.

X Y Z Less electropositive

Which of the following statements is true ?

A Z can displaced Y from its salt solutionB Atom X is more difficult to lose electron than YC X can displaced Y from its salt solutionD Z is the negative terminal in the simple cell using Y and Z as electrodes

43 A student intends to electroplate an iron key with silver. He sets up the apparatus as shown below.

When the current is allowed to flow for an hour, he find that the iron key was not electroplated. Which one of the following causes the failure of the experiment?I he uses silver chloride as an electrolyteII he uses silver plate as a cathodeIII he uses iron key as an anodeIV he uses an ammeter

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

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Ao o

silver plate

silver chlorideIron key


44 A solid deposit of element R is formed at the cathode when an aqueous solution containing ions of R is electrolysed. Which statement about element R is correct?

A R forms negative ionsB R ions gain electrons at the cathodeC R ions lose electrons at the cathodeD R is above hydrogen in the reactivity series

45 If 8 g of copper(II) sulphate CuSO4 is dissolved in 200 cm3 of solution, what is the concentration of copper(II) sulphate solution g dm–3?

A 0.04 g dm–3

B 0.40 g dm–3

C 4.00 g dm–3

D 40.00 g dm–3

46 If 150 cm3 of a 4 mol dm–3 solution Y is added to 250 cm3 of water, what is the molarity of the diluted solution?

A 1.50 mol dm–3 B 2.40 mol dm–3

C 2.80 mol dm–3

D 3.00 mol dm–3

47 Salt X show the following observations when certain tests were carried out.

When heated, solid X decomposes and a brown gas which turns moist blue litmus red is given off.

Solution of X gave a positive brown ring test. A white precipitate is formed when hydrochloric acid is added to a solution

of X. When the resulting solution is heated, the white precipitate dissolve.

Salt X could be

A Silver chlorideB Lead nitrateC Zinc bromideD Iron(III) sulphate

48 The equation below represents the action of heat on zinc nitrate .2Zn(NO3)2 2ZnO + 4NO2 + O2

In an experiment, 47.25 g zinc nitrate is heated. Calculate the volume of nitrogen dioxide produced.[Relative atomic masses : N ,14; O,16; Zn,65. 1 mole of gas occupies 24 dm3 at room condition]

A 6 dm3

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B 12 dm3

C 24 dm3

D 48 dm3

49 Which of the following ions will form a precipitate when ammonia solution is added but the precipitate dissolve when excess ammonia is added?

I Al3+

II Zn2+ III Pb2+

IV Cu2+

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

50 Calculate the percentage of nitrogen in ammonium sulphate, (NH4)2SO4 by weight.(Relative atomic mass : N, 14 ; H,1 ; S,32 ; O,16) A 6.7 %B 21.2 %C 27.3 %D 66.7 %

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Set 1 Kimia Gerak Gempur

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