SMK KUALA PERLIS,

02000 KUALA PERLIS,PERLIS

UJIAN DIAGNOSTIK

SUBJEK: CHEMISTRY

Masa:

NAMA:...................................................

TINGKATAN:..........................................

Arahan: Jawab semua soalan

Chemical Formula and Equation

1 Which of the following statement is not true for one mole of a substance?Antara pernyataan berikut, yang manakah tidak benar bagi satu mol bahan?

A 1 mole of copper contains 6.02 x 1023 atoms1 mol kuprum mengandungi 6.02 x 1023 atom

B 1 mole of oxygen gas contains 6.02 x 1023 molecules1 mol gas oksigen mengandungi 6.02 x 1023 molekul

C 1 mole of water contains the same number of atoms as in 12 g of carbon-121 mol air mengandungi bilangan atom yang sama dengan bilangan atom dalam 12g karbon-12

D 1 mole of carbon dioxide contains the same number of molecules as the number of atoms in 12g of carbon-12 1 mol karbon dioksida mengandungi bilangan molekul yang sama dengan bilangan atom dalam 12g karbon-12

2 The mass of one atom of element Y is two times more than an atom of oxygen. What is the relative atomic mass of element Y? [Relative atomic mass: O = 16) Jisim 1 atom unsur Y adalah dua kali lebih berat dari satu atom oksigen. Berapakah jisim atom relatif bagi unsur Y? [Jisim atom relatif: O = 16)

A 12B 24C 32D 36

3 What is the relative formula mass of hydrated copper(II) sulphate,CuSO4.5H20? [Relative atomic mass: Cu =64 , H = 1 , S = 32 , O = 16] Berapakah jisim formula relatif bagi kuprum(II) sulfat hidrat? [Jisim atom relatif: Cu = 64 , H = 1 , S = 32 , O = 16]

A 160 B 186 C 210 D 250

HeatPanaskan

WaterAir

Process YProses YIce

Ais

2.Structure atom

4.Diagram 1 shows ice being heated . Which of the following is process Y? Rajah 1 menunjukkan ais dipanaskan. Antara berikut , yang manakah proses Y ?

Diagram 1 Rajah 1

A MeltingPeleburan

B CondensationKondensasi

C FreezingPembekuan

D BoilingPendidihan

5

Based on the information given above, what is the nucleon number of atom Q ? Berdasarkan maklumat yang diberi di atas, apakah nombor nukleon atom Q?

A 35

B 33

C 31

D 30

Atom QAtom QElectron arrangement = 2.8.5Susunan elektron = 2.8.5Number of neutrons = 16Bilangan neutron = 16

6 Table 2 shows the melting points and boiling points for four substances P ,Q, R and S.Jadual 2 menunjukkan takat lebur dan takat didih bagi empat bahan P, Q,R dan S.

Table 2 Jadual 2 Which of the following substance exists as liquid at 10 oC ? Antara bahan berikut , yang manakah wujud sebagai cecair pada 10 oC ?

A PB QC RD S

7 Which of the following substances consist of atoms?Antara bahan berikut, yang manakah terdiri daripada atom?A

B

C

D

MagnesiumMagnesiumNitrogen gasGas nitrogenLead(II) iodidePlumbum(II) iodidaNaphthaleneNaftalena

8. The following statement is about an atom.Pernyataan berikut adalah mengenai atom.

The mass of an atom is concentrated in the nucleus which contains positively charged

particles.Jisim bagi suatu atom tertumpu dalam nukleus

yang mengandungi zarah bercas positif

Which of the following scientists made the statement?Antara saintis berikut manakah yang membuat kenyataan tersebut?

SubstanceBahan

Melting point ( o C)Takat lebur( o C)

Boiling point ( o C)Takat didih( o C)

P 110 453

Q -20 19

R 25 98

S -60 -10

ABCD

J.J. ThomsonNeils BohrErnest RutherfordJames Chadwick

9 Which of the following is an insoluble salt?Antara yang berikut, manakah merupakan garam tak larut?

A Calcium nitrateKalsium nitrat

B Potassium nitrateKalium nitrat

C Calcium carbonateKalsium karbonat

D Potassium carbonateKalium karbonat

10 Which of the following isotopes is used to detect the leakage in a gas pipe?Antara isotop berikut manakah digunakan untuk mengesan kebocoran dalam paip gas?A

B

C

D

Carbon-14Karbon-14Iodine-131Iodin-131Cobalt-60Kobalt-60Sodium-24Natrium-24

11. Which of the following elements A, B, C or D in the Periodic Table exists as monoatomic gas ? Antara unsur A,B,C atau D dalam Jadual Berkala , yang manakah wujud sebagai gas monoatom?

A CD

B

12 Diagram 4 shows the symbol of an element J . Rajah 4 menunjukkan simbol unsur J.

J19

9

Diagram 4 Rajah 4 The position of element J in the Periodic Table is Kedudukan unsur J dalam Jadual Berkala adalah

PeriodKala

GroupKumpulan

A 2 17B 3 17C 2 1D 3 1

13 Table 1 shows the number of protons, neutrons and electrons for particles F and G. Jadual 1 menunjukkan bilangan proton , neutron dan elektron bagi zarah F dan G.

ParticleZarah

Number of protonsBilangan proton

Number of neutronsBilangan neutron

Number of electronsBilangan elektron

F 12 12 12G 19 20 18

Table 1 Jadual 1

Which of the following is true about particles F and G ? Antara berikut yang manakah adalah benar mengenai atom F dan G ?

A The mass of one atom of F is 24Jisim satu atom F ialah 24

B The nucleon number of atom G is 37Nombor nucleon atom G ialah 37

C The number of valence electrons of particle F is 2 and the number of valence electron of particle G is 8Bilangan elektron valens zarah F ialah 2 manakala bilangan elektron valens zarah G ialah 8

D The number of valence electrons of particle F is 2 and the number of valence electron of particle G is 1Bilangan elektron valens zarah F ialah 2 manakala bilangan elektron valens zarah G ialah 1

14 Diagram 7 shows the arrangement of electrons for ion produced from atom Q.

X

X

X

X

X

X X

X X

X

Rajah 7 menunjukkan susunan elektron bagi ion yang terbentuk drp atom Q.

Diagram 7 Rajah 7

Which of the following statement is true about atom Q ?Antara berikut, yang manakah benar mengenai atom Q ?

A Atom Q is located in Group 1 of the Periodic TableAtom Q terletak dalam Kumpulan 1 Jadual Berkala.

B Atom Q has 7 electrons in its valence shellAtom Q mempunyai 7 elektron pada petala valensnya

C Atom Q is an inert gas Atom Q adalah gas lengai

D Atom Q has achieved the octet electron arrangementAtom Q telah mencapai susunan oktet

15 Table 2 shows the elements in Period 3 of the Periodic Table of elements. The elements can react with oxygen to form oxides.Jadual 2 menunjukkan unsur-unsur Kala 3 dalam Jadual Berkala Unsur. Unsur-unsur tersebut bertindak balas dengan oksigen membentuk oksida.

ElementUnsur Na Mg Al Si P S Cl

TABLE 2 JADUAL 2Which of the following element form oxide that can react with both hydrochloric acid and sodium hydroxide solution?Antara berikut unsur manakah membentuk oksida yang boleh bertindak balas dengan asid hidroklorik dan juga larutan natrium hidroksida?

ABCD

SPSiAl

16

Which of the following substances can conduct electricity in molten or aqueous solution?Antara bahan berikut, yang manakah boleh mengkonduksi elektrik dalam

keadaan leburan dan larutan akueus?A

B

C

D

Lead(II) bromidePlumbum(II) bromidaPotassium chlorideKalium kloridaTetrachloromethane

Tetraklorometana

Naphthalene

Naftalena

17 Which of the following statement best explains the low melting point of covalent compounds?Antara pernyataan berikut, yang manakah paling tepat menerangkan mengapa takat lebur sebatian kovalen adalah rendah?

A Covalent bond is weakIkatan kovalen adalah lemah

B The intermolecular forces are weakDaya tarikan antara molekul adalah lemah

C Covalent compounds are volatileSebatian kovalen meruap

D Covalent compounds exist as gas at room temperatureSebatian kovalen wujud sebagai gas pada suhu bilik

18 Element X is located in Group 14 of the Periodic Table. Element Y has a proton number of 17. Which of the following shows the formula and type of compound formed when element X combines with element Y?

Unsur X terletak di Kumpulan 14 dalam Jadual Berkala. Unsur Y mempunyai nombor proton 17. Antara berikut yang manakah menunjukkan formula dan jenis sebatian yang terbentuk apabila unsur X berpadu dengan unsur Y?

FormulaFormula

Type of CompoundJenis Sebatian

A XY2 IonicIonik

B X4Y CovalentKovalen

C XY IonicIonik

D XY4 CovalentKovalen

Diagram 1 shows the set-up of the apparatus for electrolysis.

19 Rajah 1 menunjukkan susunan radas yang digunakan dalam elektrolisis.

DIAGRAM 1 RAJAH 1 Which of the following compound can be used as an electrolyte? Antara sebatian berikut yang manakah boleh digunakan sebagai elektrolit?A Ammonia solution

Larutan ammonia B Glucose solution

Larutan glukosaC Naphthalene

Naftalena D Ethanol

Etanol20 Which of the following is true about acids?

Yang manakah antara berikut adalah benar mengenai asid? A Acids react with metal to produce salt and water

Asid bertindak balas dengan logam menghasilkan garam dan air B Acids react with alkali to produce salt and hydrogen gas

Asid bertindak balas dengan alkali menghasilkan garam dan gas hidrogen C Acids react with metal carbonate to produce salt, water and carbon

dioxide gasAsid bertindak balas dengan karbonat logam menghasilkan garam, air dan gas karbon dioksida

D Acids react with metal oxide to produce salt, water and hydrogen gasAsid bertindak balas dengan oksida logam menghasilkan garam, air dan gas hidrogen

22

Which of the following is true about a weak alkali? Antara berikut, yang manakah benar tentang alkali lemah?

A

B

C

D

Unable to neutralise an acid Tidak boleh meneutralkan asidThe pH value is less than 7Nilai pH lebih kecil daripada 7 Able to change blue litmus paper to red Boleh menukarkan warna kertas litmus biru kepada merahIonises partially in water to produce hydroxide ionsMengion separa dalam air untuk menghasilkan ion-ion hidroksida

23 Which of the following salts can be prepared by precipitation reaction?Yang manakah antara garam berikut boleh disediakan melalui tindak balas pemendakan?A Zinc nitrate

Zink nitratB Barium sulphate

Barium sulfatC Sodium chloride

Natrium kloridaD Potassium carbonate

Kalium karbonat

21 Which of the following substance, when added to dilute ethanoic acid, will decrease the pH value of the acid?Antara bahan berikut, yang manakah apabila ditambahkan kepada asid etanoik cair, akan menurunkan nilai pH asid tersebut?

A Sodium carbonateNatrium karbonat

B Magnesium oxideMagnesium oksida

C Sodium hydroxideNatrium hidroksida

D Hydrogen chloride gasGas hidrogen klorida

24 Which of the following pairs of substances is most suitable for the preparation of copper(II) sulphate?Antara pasangan bahan berikut yang manakah paling sesuai digunakan untuk menyediakan kuprum(II) sulfat?

A Dilute sulphuric acid, copper(II) carbonate Asid sulfurik cair, kuprum(II) karbonat

B Ammonium sulphate, copper(II) oxide Ammonium sulfat, kuprum(II) oksida

C Copper powder, dilute sulphuric acid Serbuk kuprum, asid sulfurik cair

D Aqueous sodium sulphate,aqueous copper(II) nitrate Larutan natrium sulfat, larutan kuprum(II) nitrat

25

Which of the following salts is soluble in water? Antara garam berikut, yang manakah larut dalam air?A Magnesium carbonate

Magnesium karbonatB Silver chloride

Argentum kloridaC Copper(II) nitrate

Kuprum(II) nitratD Barium sulphate

Barium sulfat

26 The information below shows the properties of a substance.

Maklumat di bawah menunjukkan sifat-sifat suatu bahan.

Which substance has the above properties? Bahan yang manakah mempunyai sifat-sifat seperti di atas? A Glass Kaca B Alloy Aloi C Polymer Polimer D Ceramics Seramik

Hard Keras

Good insulator of electricity and heat Penebat elektrik dan haba yang baik

Inert towards chemicals Lengai terhadap bahan kimia

27 Diagram 5 shows the arrangement of atoms in a substance. Rajah 5 menunjukkan susunan atom dalam suatu bahan.

Diagram 5 Rajah 5

Which substance may have the arrangement of atoms as shown above? Bahan manakah mungkin mempunyai susunan atom seperti di atas?

A alloy aloi B metal logam C polymer polimer D composite material Bahan komposit

28 Why is ceramic used for the wall of a nuclear reactor? Mengapakah seramik digunakan sebagai dinding reaktor nuclear?

A Ceramic is very hard Seramik sangat kuat B Ceramic is very malleable Seramik mudah ditempa C Ceramic is inert towards chemical Seramik lengai terhadap bahan kimia D Ceramic can withstand high temperature Seramik tahan kepada suhu yang tinggi

Bridge pillarsTiang jambatan

29 Diagram 10 shows the Penang Bridge. How can we prevent the bridge pillars from rusting? Rajah 10 menunjukkan Jambatan Pulau Pinang. Bagaimana kita boleh menceg tiang jambatan ini daripada berkarat?

Diagram 10 Rajah 10

A AlloyingPengaloian

B Tin platingPenyaduran timah

C GalvanizingPenggalvanian

D Sacrificial protectionPerlindungan pengorbanan

30 The following information are some of the uses of a manufactured substance, Z, in industry. Maklumat berikut menunjukkan beberapa kegunaan bahan buatan, Z, dalam industri.

Manufacture of ureaPenghasilan urea

As a cooling agent in refrigeratorSebagai bahan penyejuk dalam peti sejuk

Manufacture of explosivesPenghasilan bahan letupan

Which substance is suitable as Z? Bahan yang manakah sesuai sebagai Z?

A Polymer Polimer B Ammonia Ammonia C Sulphuric acid Asid sulfurik D Composite material

Bahan komposit

31. Diagram 8 shows a method of preparing insoluble salt by mixing solution X and solution Y. Rajah 8 menunjukkan suatu kaedah penyedian garam tak terlarutkan melalui campuran larutan X dan larutan Y.

Diagram 8 Rajah 8

What is the type of the reaction shown in Diagram 8.Apakah jenis tindak balas ditunjukkan dalam Rajah 8.

A.Neutralisation reaction Tindak balas peneutralanB.Substitutiuon reaction Tindak balas penukar gantianC.Precipitation reaction Tindak balas pemendakanD.Addition reaction Tindak balas penambahan

Solution Y Larutan Y

SaltGaram

Mixing two solutionCampuran dua larutan

Dry

Keringkan

Salt crystals

Filter and rinseTuras dan bilas

Solution X Larutan X

32 Which of the following are the properties of glass?Antara berikut, yang manakah sifat-sifat kaca?

I Transparent Lutsinar

II Does not react with chemicalTidak bertindak balas dengan bahan kimia

III Can be cleaned easilySenang dicuci

IV Can insulate heatBoleh menebat haba

A I and III onlyI dan III sahaja

B I, III and IV onlyI, III dan IV sahaja

C II, III and IV onlyII, III dan IV sahaja

D I, II, III and IVI, II, III dan IV

33 Plastics can cause pollution because Plastik boleh menyebabkan pencemaran kerana

A plastics are widely use in daily lifeplastik digunakan dengan meluas dalam kehidupan harian

B plastics are biodegradableplastik adalah terbiodegradasi

C burning of plastics can release toxic gasespembakaran plastik menghasilkan gas toksik

D some plastics can be recycledsesetengah plastik boleh dikitar semula

34 Which of the following fertilizers has the highest number of nitrogen atoms?Manakah antara baja-baja berikut mengandungi bilangan atom nitrogen yang paling tinggi?

A 0.5 mol (NH4)3PO4

B 0.5 mol (NH4)2SO4

C 1.0 mol NH4ClD 1.0 mol NH4NO3

35 Ammonia gas dissociates according to the following equation.Gas ammonia terurai mengikut persamaan berikut.

2 NH3(g) à N2(g) + 3H2(g)

Substance Q

What is the total volume of gas produced if 112 cm3 of ammonia gas dissociate at STP?[1 mol of gas occupies 22.4 dm3 at STP]Berapakah jumlah isipadu gas yang terhasil jika 112 cm3 gas ammonia terurai? [1 mole of gas occupies 22.4 dm3 at STP]

A 22.4 cm3

B 67.2 cm3

C 89.6 cm3

D 224.0 cm3

36 Diagram 13 shows a racing car. The body of the car is made of substance Q.Rajah 13 menunjukkan sebuah kereta lumba. Badan kereta tersebut diperbuat daripada bahan Q.

DIAGRAM 13 RAJAH 13

Substance Q has the following properties:Bahan Q mempunyai ciri-ciri berikut:

strong kuat light ringan withstand high temperature tahan haba tinggi durable tahan lasak

Which of the following is substance Q?Antara berikut manakah bahan Q?A Ceramic

SeramikB Concrete

KonkritC Plastic

PlastikD Composite material

Bahan komposit

Temperature / 0C

Time/sss

80

30 360

P

Q R

S

Soalan strukturPAPER 2 – STRUCTURE

SECTION A

1 Graph 1 shows the temperature against time of solid substance X when heated. Substance X is an organic compound and flammable.

GRAPH 1

(a) Draw a diagram of the set-up of the apparatus used to determine the melting point of substance X.

[ 2 marks]

(b) (i) State the melting point of substance X

........................................................................................................................................

[ 1 mark]

(ii) What is the state of matter of substance X at :

PQ : ............................................................................................................................................

RS : ............................................................................................................................................

[ 2 marks]

(iii) Explain why the temperature remains constant from Q to R.

...............................................................................................................................................

..............................................................................................................................................

[ 2 marks]

(iv) State how the movement of substance X particles changes between R and S during heating.

…………………………………………………………………………………………………

[ 1 mark]

(c) If substance X is cooled to the room temperature without stirring, sketch the graph of temperature against time obtained.

[ 2 marks]

(d) Identify subtance X

....................................................................................................................................................

[ 1 mark]

2 Diagram 2 shows part of the Periodic Table of Elements.V,W,X,Y and Z do not represent the actual symbol of the elements.

2 13 14 15 16 17

WX V Z

Y

1 18

DIAGRAM 2

(a) Write the electron arrangement of V atom.

…………………………………………………………………………………….....................

[1 mark ]

(b) (i) Which of the element is not chemically reactive.

...........................................................................................................................................

[1 mark ]

(ii) Which element is metal?

..............................................................................................................

(iii) Which element is non-metal?

...............................................................................................................

[2 mark ]

(c) V and Y are located in the same group in the Periodic Table of Elements.

(i) Which of the element is more reactive?

...................................................................................................................

[1 mark ].

3 The table 3 shows melting point, boiling point and electrical conductivity of substance P, Q, R, and T .

\

Melting point (oC)

Boiling point (oC )

Electrical conductivity

Solid Molten

P 805 1460 No Yes

Q 1549 2950 Yes Yes

R -210 -153 No No

T -7 59 No No

Table 3

(a) Which of the substances is a metal ?

…………………………………………………………………………………………………………

[1 mark]

(b) (i) state the type of particle in substance P ?

………………………………………………………………………………………………………

[1 mark]

(ii) Explain why substance P cannot conduct electricity in solid but can conduct electricity

molten state.

..........................................................................................................................................................

...........................................................................................................................................................

[2 marks]

(c) (i) What is the physical state of R and T at room temperature ?

R : ............................................

T : ......................................

[2 marks]

(ii) Draw the arrangement of particles in substance T at room temperature .

[ 2 marks ]

(iii) Explain why the melting and boiling points of substance R and T is low ?

……………………………………………………………………………………………………………

……………………………………………………………………………………………....................

[ 2 marks ]

4 The diagram 4 shows the electron arrangement of compound J. Compound J formed from reaction between element X and element Y

__ 2 + __

Y X Y

Diagram 4

(a) How are Y ion and X ion formed from their respective atoms?

Y ion:

…………………………………………………………………………………………………..

X ion :

…………………………………………………………………………………………………[ 2 marks]

(b) (i) Write the formula for compound J

........................................................................................................................

[1 mark]

(ii) Name type of bond in compound J

........................................................................................................................

[1 mark]

(iii) Write the chemical equation for the reaction between element X and element Y to form compound J.

..............................................................................................................................

[1 mark]

(c) (i) Write the electron arrangement for atom of element X and Y

X :…………………………………….

Y : …………………………………..

[2 marks]

(d) Y can react with carbon to form a compound. Draw the electron arrangement for the compound formed.[Given that proton number for carbon is 6]

[3 marks]

5. Below are the symbols of element X

1327 X

612 Z

5. Write 5 information that can be obtained from the element given.

JAWAPAN UNTUK SOALAN OBJEKTIF

NO SOALAN

JAWAPAN NO SOALAN

JAWAPAN

1 21

2 22

3 23

4 24

5 25

6 26

7 27

8 28

9 29

10 30

11 31

12 32

13 33

14 34

15 35

16 36

17

18

19

20