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SULIT4541/1 Chemistry Peper 1 Oktober 2009 1 1/4 jam

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PEJABAT PELAJARAN DAERAH MELAKA TENGAH _______________________________________________________ PROGRAM LONJAKAN SAUJANA SPM 2009

CHEMISTRY Paper 1 Satu jam lima belas minit

JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU 1. Kertas soalan ini mengandungi 50 soalan 2. Jawab semua soalan 3. Jawab dengan menghitamkan ruangan yang betul pada kertas jawapan 4. Hitamkan satu ruangan sahaja bagi setiap soalan 5. Rajah tidak dilukis mengikut skala kecuali dinyatakan 6. Anda dibenarkan menggunakan kalkulator saintifik yang tidak boleh diprogramkan

Kertas soalan ini mengandungi 20 halaman bercetak.

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The figure below shows the set-up of the apparatus to study Process I

What is Process I ? A B C D Condensation Evaporation Diffusion Sublimation

2

What is the definition of a mole ? A B C D The volume occupied by 6.02 X 1023 particles The atomic mass of a substance which consists of 6.02 X 1023 atoms The molecular mass of a substance which consists of 6.02 X 1023 molecules The quantity of substance which has the same number of particles as the number of atoms in 12 g of Carbon-12

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3

The figure below shows the heating curve for substance N TemperatureoC

Z Y

X

Time/s

Which of the following gives the correct states of substance N at X, Y and Z as shown in the graph? X A B C D 4 solid solid solid liquid Y liquid solid and liquid solid and liquid liquid and gas Z gas gas liquid solid

Which of these is the correct sequence of scientific method of investigation ? A B C D Observation inference determining the variables doing experiment Analysing data collecting data making conclusion identifying problem Hypothesis doing the experiment conclusion inference Doing the experiment hypothesis analysing data inference

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5

When steam condenses, the particles A B C D become smaller size lose energy to their surroundings move futher apart vibrate about fixed positions

6

The figure below shows an electron arrangement of Y2+

How many protons and electrons does an atom of Y contain ? Proton A B C D 8 12 12 8 Electron 8 10 12 10

7

What can we deduce from the symbol A B C D An atom of helium contains two electrons

?

An atom of helium has two protons and four neutrons in its nucleus Helium has a proton number of 4 Helium occurs as a diatomic molecule

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The relative formula mass of ammonium phosphate, (NH4)3PO4 is [ Relative atomic mass of H=1, N=14, O=16 and P=31] A B C D 133 141 149 159

9

Rouge is a pigment which contains 2.8 g of iron combined with 1.2 g of oxygen. What is the chemical formula of rouge ? [ Relative atomic mass of Fe=56 and O=16 ] A B C D FeO Fe2O3 Fe3O2 Fe3O4

10 A metal X can exist as X2+ and X3+ ions. The possible formulae for its sulphates would be I II III IV XSO4 X2SO4 X2(SO4)3 X3(SO4)2 I and II only I and III only II and III only II, III and IV only

A B C D

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11

Which of the following electron arrangements is found in an atom of a noble gas? A B C D 1 2.1 2.8 2.8.2

12

The following table shows the proton number and nucleon number of atom X Proton number Nucleon number 9 19

Which of the following shows the position of X in the Periodic Table of elements? Group A B C D 1 17 1 17 Period 4 2 1 4

13 The table below shows the position of 2 elements, P and Q, in the Periodic Table of Elements. Elements P Q Group 1 17 Period 3 3

Which of the following is true about elements P and Q ? A B C D The atoms of P are smaller than the atoms of Q Atoms of P have stronger attraction for other electrons The number of positive charges in the nucleus of P is less than Q Atoms of Q have a higher tendency than P to release electrons

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14 The chemical symbol of an element T is as shown : 24

T12 What would be the electron arrangement of the ion formed by an atom of T ? A B C D 2.8 2.8.2 2.8.8 2.8.8.8

15

The electron arrangement of atom X = 2.8.7. What is the formula of the ion formed from X ? A B C D XX+ X7X7+

16

The electron arrangements of 2 atoms X and Y are as shown :

X

Y

Which of the following is true when X react with Y? A B C D X receives electrons Y receives electrons The compound formed has a formula of XY2 The compound formed is made up of molecules

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17

The proton numbers of a few elements are as shown : Element H Na Mg S Proton Number 1 11 12 16

With the atoms of which element would chlorine atoms combine by sharing electrons? I H II Na III Mg IV S I only A B C D II only II and III only I and IV only

18

It is discovered that a compound with formula WZ dissolves in water. What inference can you make about the compound ? A B C D It is not a covalent compound The compound ionizes in water The compound will not dissolve in an organic solvent The intermolecular forces between the particles are very weak

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19 The following diagram shows the apparatus set up for an elelctrolysis.

E

Which of the following cannot be E ? A B C D Ammonium hydroxide Sodium Chloride Ethanoic acid Ether

20

An experiment has been carried out to determine the relative position of three metals X, Y and Z in the electrochemical series by using the displacement reaction. The results are as shown : Mixture X + solution of Y X + solution of Z Y + solution of Z Z + solution of Y Results Y deposited No reaction No reaction Y deposited

Which of the following shows the correct relative position of X, Y and Z in descending order of tendency to release electrons? A B C D X, Y, Z Y, X, Z Z, X, Y Z, Y, X

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10

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Which of the following compounds is a soluble base? A B C D Aluminium oxide Copper(II) oxide Iron(III) oxide Sodium oxide

22

The pH scale below shows the position of five aqueous solutions P, Q, R, S and T, of equal concentration. P Q R S T

1

7 pH Scale

14

What could the aqueous solutions be ? Ethanoic acid A B C D P Q Q S sulphuric acid Q P P T ammonia aqueous R S T Q sodium chloride S R S R sodium hydroxide T T R P

23

What is the concentration of hydrogen ions in 0.05 mol dm-3 sulphuric acid? A B C D 0.025 mol dm-3 0.050 mol dm-3 0.100 mol dm-3 0.250 mol dm-3

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11

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Which of the following equations best represents the actual reaction between hydrochloric acid and sodium hydroxide solution? A B C D H+ H2 + + OH O2 O 2Cl H2O H2O H2O NaCl

2H+ + Na+ +

25

The neutralization reaction between nitric acid and barium hydroxide solution is shown in the equation below 2HNO3 + Ba(OH)2 Ba(NO3)2 + 2H2O 10.0 cm3 of 0.1 mol dm-3 barium hydroxide solution was titrated with 0.1mol dm-3 of nitric acid . What is the volume of the nitric acid? A B C D 10 cm3 20 cm3 30 cm3 40 cm3

26

Air polluted by sulphur dioxide was passed through the apparatus shown in the diagram below.

Which of the following solutions could be used as Z to show the presence of sulphur dioxide? A B C D acidified potassium manganate(VII) aqueous iron(II) sulphate aqueous potassium iodide limewater

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12

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The following scheme shows four stages in the conversion of sulphur to sulphuric acid. In which stage is the catalyst used?

28

Which of the following mixtures of elements forms the most suitable alloy for manufacturing of racing bicycle which is light and firm? A B C D copper and nickel iron and carbon stanum and copper aluminium and copper

29

Which of the following pairs shows the correct monomer for making the respective polymer?

A

B

C

D

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The followings are the properties of glass. Which of the followings are true? I II III IV A B C D low melting point. they are good insulators of heat. resistant to chemicals hard but brittle I and II only III and IV only I, III and IV only II, III and IV only

31 Compound A is an organic compound. When heated strongly, which of the following gases is released? A B C D Oxygen Hydrogen Carbon dioxide Ethane

32 The following chemical equations show two chemical reactions that took place. X Y CH2CHCH2CH3 +H2 CH3CH2CH2CH3 CH2CHCH2CH3 +H2O CH3CH(OH)CH2CH3

Which of the following shows the correct reaction represented by X and Y ? X A B C D Hydration Hydrogenation Substitution Oxidation Y Hydrogenation Hydration Dehydration Reduction

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33 Which of the following is the IUPAC name for the structural formula shown below?

A B C D

3-ethyl-4-methylheptane 4-methyl-2-ethylhexane 5-ethyl-3-methylheptane 2-ethyl-4-methylhexane

34 Which of the following is