Paper 1 Chemistry Spm Sbp

SULIT 4541/1 Kimia Kertas 1 Ogos 2007 1¼ jam

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BAHAGIAN SEKOLAH KEMENTERIAN PELAJARAN MALAYSIA ______________________________________________ PEPERIKSAAN PERCUBAAN SPM 2007

KIMIA Kertas 1 Satu jam lima belas minit

JANGAN BUKA KERTAS SOALAN INI HINGGA DIBERITAHU 1. 2. 3. 4. 5. 6. 7.

Kertas soalan ini mengandungi 50 soalan. Jawab semua soalan Jawab dengan menghitamkan ruangan yang betul pada kertas jawapan Bagi setiap soalan hitamkan satu ruangan sahaja Sekiranya anda hendak menukar jawapan, padamkan tanda yang telah dibuat. Kemudian hitamkan jawapan yang baru. Rajah yang mengiringi soalan tidak dilukiskan mengikut skala. Anda dibenarkan menggunakan kalkulator saintifik yang tidak boleh diprogramkan.

Kertas soalan ini mengandungi 19 halaman bercetak 4541/1

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Which of the following processes, proved the kinetic theory of matter? A B C D

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proton number nucleon number relative atomic mass relative molecular mass

Which of the following substances is a covalent compound? A B C D

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NH4SO4 (NH4)2SO4 (NH3)2SO4 (NH4)3(SO4)2

Elements in the Periodic Table are arranged according to an increase in A B C D

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Diffusion Photosynthesis Respiration Neutralization

Which of the following is a chemical formula of ammonium sulphate? A B C D

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Copper Ammonia Lead(II) oxide Sodium chloride

Which of the following substances is an electrolyte? A B C D

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Hydrogen chloride in methyl benzene Molten aluminium oxide Glucose solution Copper(II) carbonate powder

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Which of the following statements is true about alkali? A B C D

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Weak alkali is an alkali that undergoes high rate of ionization. Strong alkali has low pH value Alkalis are bases that are soluble in water. Alkalis are not corrosive

Which of the following is a soluble salt? A B C D

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Lead(II) iodide Copper(II) carbonate Barium sulphate Sodium hypochlorite

The body of the car shown in the diagram below is made of alloy T.

Alloy T

What is alloy T? A B C D

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Steel Brass Bronze Duralumin

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4541/1 Which of the homologous series is correctly paired to its functional group? Homologous series

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A

Ester

B

Alkene

C

Alcohol

D

Carboxylic acid

Functional groups

Which of the following statements correctly explains the meaning of effective collision? A B C D

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The collision which takes place before reaction. The collision where its energy is less than the activation energy. The collision that can causes reaction. The collision that has the highest energy.

• • •

Bromine water Acidified potassium manganate(VII) Acidified potassium dichromate(VI)

Which of the following is true about the substances? A B C D

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Reducing agent Oxidising agent Dehydration agent Hydration agent

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Which of the following processes occurs when ice changes to water ? A B C D

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Endothermic Exothermic Neutralization Freezing

Paracetamol is used for A B C D

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reducing pain reducing anxiety destroying of bacteria controlling the level of glucose in blood

The diagram below shows the molecular formula of glucose.

C6H12O6 What is the empirical formula for glucose? A B C D

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CH2O CH2O2 C2H4O2 C6H12O6

Which of the following is the atomic structure of lithium atom, A

Li

?

B 3p

3p

C

D 4p

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7 3

4p

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The figure shows three elements in Period 3 of the Periodic Table.

X

Y

Z

Which of the following is true about the properties of oxide formed? A B C D 17

Which of the following substances is made up of ions? A B C D

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Sulphur Naphthalene Sulphur trioxide Potassium chloride

Which of the following ions are present in copper(II) sulphate solution? A B C D

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The oxide of Z is basic The oxide of Y is acidic The formula of oxide Y is YO The oxide of X reacts with an acid to form salt and water

Hydrogen ions and hydroxide ions Copper(II) ions and sulphate ions Copper(II) ions ,hydrogen ions, suphide ions and oxide ions Copper(II) ions, hydrogen ions, sulphate ions and hydroxide ions

Dry hydrogen chloride gas is passed through methyl benzene for a few minutes. Which of the following statements is true about the liquid produced? I II III IV

it has a pH value of less than 7 it consists of hydrogen chloride molecules it changes blue litmus to red it does not conduct electric current

A B C D

I and III only II and IV only I, II and III only IV only

The diagram shows part of a polymer molecule

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CH3 H CH3 H

CH3 H

C

C

C

C

C

C

H

H

H

H

H

H

Which is its monomer? A

B

C

D

Nitric acid will change to nitrate salt when hydrogen ions are replaced by I II III IV

copper ion hydroxide ion carbonate ion ammonium ion

A B C D

I and II only I and IV only II and IV only I, III and IV only

The graph shows the volume of carbon dioxide gas produced against time for the

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reaction of calcium carbonate and sulphuric acid.

Volume of CO2 gas / cm3

Time / second The gradient of the graph decreases with time because A B C D

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catalyst is not used volume of mixture decreases temperature of reaction decreases concentration of sulphuric acid decreases

The equation below shows a chemical reaction.

Based on the equation given, name the reaction. A B C D 24

Hydrogenation Polymerization Halogenation Substitution

The diagram below shows the electrolysis process of copper(II) sulphate solution using

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copper as an electrode.

Copper Copper(II) sulphate solution Which of the following substances are oxidized and reduced in this cell?

A B C D

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Oxidised

Reduced

Hydroxide ion Hydroxide ion Copper atom Copper atom

Copper(II) ion Copper atom Copper(II) ion Hydrogen ion

The reaction between nitrogen and oxygen can be represented by the following equation: N2 (g) + O2(g) →

2NO(g)

∆H = +181 kJ

Which of the following energy level diagrams represent the above reaction? A

B

Energy N2 (g) + O2(g)

Energy 2NO(g) ∆H = +181 kJ

∆H = +181 kJ

2NO(g)

C

N2 (g) + O2(g)

D

Energy

Energy N2 (g) + O2(g)

2NO(g) ∆H = +181 kJ

∆H = +181 kJ

N2 (g) + O2(g)

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2NO(g)

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The diagram shows a label on a bottle of orange juice.

SUKARAMAI ORANGE JUICE Ingredients:

water, sugar, X , sulphur dioxide, aspartame, vitamin A and D

X is one of the important ingredients to make orange juice last longer. What is X? A B C D

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Sodium nitrite Sodium nitrate Ascorbic acid Benzoic acid

The figure shows the arrangement of particles of a substance that undergoes the change of state through process X

What is process X ? A B C D

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Melting Boiling Freezing Sublimation

The equation below shows the reaction between sulphuric acid and sodium hydroxide

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solution. H2SO4 + 2KOH

K2SO4 + 2H2O

What is the number of moles of sodium sulphate salt produced if 0.2 mol of sodium hydroxide is used? A B C D

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0.10 mol 0.05 mol 0.22 mol 0.25 mol

The table shows the electron arrangements of atoms of four elements. Element Electron arrangement

F

Al

Cl

K

2.7

2.8.3

2.8.7

2.8.8.1

Which of the following is the correct arrangement of the elements according to increasing order of electronegativity? A B C D

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F, Al, Cl, K F, Cl, Al, K K, Cl, Al, F K, Al, Cl, F

The number of valence electrons of atoms X and Y are 2 and 7 respectively. Which of the following chemical formulae and types of bonding are true for the compound formed between X and Y? A B C D

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Chemical Formula XY2 XY2 X2Y X2Y

Type of Bonding ionic covalent ionic covalent

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The diagram below shows the set-up of the apparatus for electrolysis of concentrated solution of sodium chloride

What is the product formed at the anode and cathode? A B C D

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Anode O2 Cl2 Cl2 O2

Cathode H2 H2 Na Cl2

The diagram below shows 5 steps for preparing a standard solution of sodium hydroxide, NaOH but not in correct order. P- Transfer the solid sodium hydroxide into volume into the volumetric flask. Q- Weigh the mass of sodium hydroxide R- Add distilled water until the graduation mark. S- Rinse the weighing bottle and pour the solution into the volumetric flask. T- Shake the volumetric flask. Which of the following steps is correct? A B C D

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Q, S, P, R, T R, Q, S, P, T Q, P, S, R, T R, Q, S, T, P

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The diagram below shows the test tubes containing lead(II) nitrate solution and potassium carbonate solution but without a label. Which of the following solutions can be used to distinguish both solutions?

Potassium carbonate solution

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I II III IV

Sodium nitrate Sodium iodide Dilute nitric acid Potassium sulphate

A B C D

I and II only II and IV only II, III and IV only I, II, III and IV

Lead(II) nitrate solution

Which of the following is the alcohol produced from the alkaline hydrolysis of oil? A B C D

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Ethane-1,2-diol Glycerol Cyclohexanol Buthane-2-ol

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35 Volume of H2 gas / cm3

40 36 30 20 18 10 0 60 120 180 240 300 time / s A group of students carried out an experiment to determine the rate of reaction of zinc metal with dilute hydrochloric acid. The diagram above shows the graph for the total volume of gas collected against time. The average rate of reaction for the whole experiment is : A B C D 36

When a mixture of 2-butanol, CH3CHOHCH2CH3 and concentrated sulphuric acid is heated, gas X is produced. Which of the following is the molecular structure of X? A B C D

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0.3 cm3/s 0.25 cm3/s 0.17 cm3/s 0.13 cm3/s

CH3CH=CHCH3 CH3CH=C(CH3)2 (CH3)2CHCH=CH2 CH3CH2CH=CH2

The diagram below shows the changes of the sulphur in Contact Process. S

SO2

SO3

H2S2O7

Which of the following are the correct changes in the oxidation state of sulphur? A B C D 4541/1

0 0 1 1

+4 +4 +3 +4

+6 +6 +6 +6

+6 +7 +8 +6 14

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The following equation shows the formation of water H2(g) + ½ O2(g) → H2O(l) , ∆H = ─ 287 kJmolˉ¹ Which of the following is true regarding the above equation? A B C D

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Activation energy for the reaction is high If 1 mole of oxygen reacts 574 kJ of heat energy is absorbed Combustion of 1 mole of hydrogen releases 287 kJ of heat energy 1 mole of water that is formed in the reaction received 287 kJ heat energy

A patient claims he always heard someone says something to him but he didn’t see anybody around him during the situation. Which of the following medicines is most appropriate in treating the above symptoms or disorders? A B C D

Chlorpromazine Amphetamine Tranquilisers Barbiturates

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Which of the following isotopes is used to detect leakage in a gas pipe. . A Carbon – 14 B Cobalt – 60 C Sodium – 24 D Iodine - 131

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34 g of ammonia consists of [Relative molecular mass of ammonia = 17, Avogadro constant = 6.02 x 10 23 mol-1] I 2 mole of nitrogen atoms II 2 mole of ammonia molecules III 1.204 X 1024 molecules IV 5 mole of hidrogen atoms A B C D

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I and II only I, II and III only II, III and Iv only I, II, III and IV only

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Profesional cyclists usually fill their bicycle tyres with gas X which makes the bicycle lighter. X Y

W Z

Which of the following elements X, Y, W and Z in the Periodic Table is suitable to be used in bicycle tyres? A B C D 43

X Y W Z

The diagram below shows the symbols of atoms D and E

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16

D 13

E 8

Atom D reacts with atom E to form a compound. Calculate the relative molecular mass for the compound formed. A B C D 44

21 43 102 113

Calculate the volume of sodium hydroxide of concentration 0.5 mol dm-3 needed to neutralize 25.0 cm3 sulphuric acid of concentration 0.20 mol dm-3. A B C D

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10 cm3 20 cm3 25 cm3 50 cm3

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The table below shows the potential difference of three simple voltaic cells. Cell

Potential Negative difference(V) terminal I Mg and Cu 3.0 Mg II Mg and Zn 1.5 Mg III Zn and Fe 0.5 Zn What is the potential difference of a simple voltaic cell for pair of iron and copper ? A B C D

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0.5 V 1.0 V 1.5 V 2.5 V

200 cm3 of 0.1 mol dm-3 sodium chloride solution reacts completely with excess silver nitrate. Calculate the mass of precipitate produced. [Relative atomic mass of: Ag, 108; Cl, 35.5] A B C D

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Pair of metal

2.78 g 2.87 g 3.78 g 3.87 g

The uses of substance X; • • •

To clean metals. To produce detergents. To make paints.

What is substances X? A B C D

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Nitric acid Sulphuric acid Ammonia Ammonium sulphate

Graph represents the decomposition of 25 cm3 hydrogen peroxide of 0.5 mol dm-3 with

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manganese(IV) oxide as a catalyst at a temperature of 30oC.

Which of the following experiments will produce graph II ? Volume of hydrogen peroxide / cm3 A B C D

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15 15 40 40

Concentration of hydrogen peroxide/ mol dm-3 0.7 0.5 0.7 0.5

Temperature of hydrogen peroxide / oC 30 30 30 20

Which of the following equations represents a redox reaction? A B C D

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Pb(NO3)2(aq) + CuSO4(aq) PbSO4(s) + Cu(NO3)2(aq) CH3COOH(aq) + NaOH(aq) CH3COOH(aq) + H2O(l) Mg(s) + CuSO4(aq) MgSO4(aq) + Cu(s) C2H4(g) + 3O2(g) 2CO2(g) + 2H2O(l)

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The diagram below shows the molecular formulae of two compounds A and B. Substance X is formed when both compounds react with each other. Compound B, C2H5COOH

Compound A, C2H5OH

Substance X Which of the following set represents substance X? Structural formula A

H O O

H C C H

Name

H

H

H

C

C

C

H

H

H

H

H

C

C

H

H

H

H

H

C

C

C H

H

H H

Ethyl propanoate

H

B

C

H

H

O

H C

C

C

H

H

H O H C C

O

H D

H

H

O

H C

C

C

H

H

O

O

H

H

C

C

H

H

H

Ethyl propanoate

Propyl propanoate

H

Propyl propanoate

END OF QUESTION PAPER

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