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SEKOLAII MENENGAH JENIS KEBAIIGSAAN CHONG ITWAKUALA LT]MPT]R

Kertas L

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JANGAI\ BUKA KERTAS SOALAI\ II\u SEHINGGA DIBERITAHU

1. Kertas soalan ini mengandunst 50 soalan anekapilihan.

2. Jantab sentua soalan.

3. Jawab soalan dengan menghitamlcan ruangan pilihan jawapan di dalam kertas OMRyang telah disediakan.

4. Anda dibenarkan menggunakan kallculator saintifik..

Disemak oleh:

1i

lr1$l-

ftr.sf{_D

(sITr NOR.ATSYATT) (zuRrNA BrYrrFrsrrArg

Kertas soalan ini mengandungi 15 halaman bercetak.

The diagram 1 shows the electon arrange'lnent of atom X'

?E-

AOB2

How manyvalence electrons arethere in atom X?

c68

The miss of four atoms of Y is e{ual to the mass of three carbon atoms.Y is not

the actual spnbol of the element. What is the relative atomic mass of ele,rnent Y?.[Relative atomic mass: C: 12]

A0c(.B 2 M"*oThe Periodic Table below snoffirr elements represented by

oDiagram 1

c

D

Hydrogen chloride

Ethanol

L

a

Solid lead (II) bromide does not conduct electricitybecause

A it consists of molecules.

B it does not contain ion.

,drcontains lead (II) ions and bromide ions that are not free to move.

ft{ lead (ID ions and bromide ions are bonded by sfrong covalent bonds.

l_/

A

B

Silver chloride

Lead(II) bromide

PQ

PzQ

Which of the following

?lncsn*

Barium sulphate

Potassium carbonate

PzQz

PQz

C OO Ooooooo

D

C

D

10

iiNa"

Which of the following represents the arrangement of particles in ice?

10 4.80 g of element P reacts completelywith 3.20 g of element Q.What is the empirical

formula of the gonrpound produced?

[Relative ic mass P--24; Q:161

ffi

11

ff Nt*t$r-

electrons, 1 1 protons and l2neutrons?

12 The information below describes the properties of a metal.

r 'Soft' and shiny

r Conducts electricity

I Reacts vigorously with water to produce an alkaline solution

which of the following metais best fits the above properties?

Copper

Calcium

C Aluminium

,6Drtassium(/

\Which of the following is fue about electrolytes?

a) Elements that conduct electricity in molten state

B Compounds that conduct electricityin solid state

c Elements that conduct-electricity in solid or molten state

Magnesium

Nitrogen gas

C Lead(tr) iodide

D Potassium iodide

h Co*ooorras that conduct electricityin molten state or aqueous solution

t-/ r,

of the following substances consist of atoms?

B

15 Table 1 shows the pH value of four acidic solutions which have the same concentation.

Solution pH value

P 1.0

a 3.0

R 5.0

s 6.0

Table 1

solution has the highest degree of dissociation?

CRDS

;\d

16 A student prepared hot potassium nitraJe solution and cooled it to room temperature. Itfailed to get any crystali. Which of the'following maybe the cause of the failure to get

crystals?

A The hot solution contains impurities.

Gne hot solution is cooled too fast.l/C The hot solution is not stirred correctly.

/Broe hot solution is too dilute.V17 Table 2 below is a part of the Periodic Table of Elemets-

il.iN*rt3

I2Mg

24

1"1

AT

2V

t4$igs

15

F3t

l6sjrj

1?. t

35.5

l8Ar4*

Table2

The size of the atoms decreases from sodium to argon. Why does it happen?

-. A The elecfronegativity or affinity to attract electons of the elements increases.

h) The shell filled with electrons inffeases.\J- C The properties of the ele,me,lrts change from less metallic to more metallic.

f\/ n)ft

"positive charge of the nucleus increases.

l/18 Diagram 2 below shows the observation of areaction when apiece of metal X and metal Y

of the same size are put into a beaker containing cold water.

Ftarrre,lbraJrlctrr

Fl*m*N;v'*J***

Metsl X lrlfets.t YlttgE*trt}{ ' f-rsppunY

frqrld water"4rir sv;r*ft

Diagran2

Which of the following explains the observation?

A Metal Y is harder than metal X

B Metal Y is more dense than metal X

( C)fn atom of metal Y contains more protons than the atom ofmetal X\ 7t\

P"atom of metal Y releases electrons more easily than the atom of metal X

/4/o

a-

19 Diagram 3 shows the electron arrangement of atoms P and Q'

Diagram 3

Which of the following shows the eleotrons axrangeme'lrt of the compound

formedbetween atoms P and Q?

HB

D

b

2fr Which of the following statements about 600 crn3 ofoxygen gas is true?

I Avogadro's constant :6.02x1023 mol-I, Molar volume of gas :24 dm3 at room

2l

0.25 mol of oxygen gas

C II and IV

D IIIandIV

Sodium and argon are placed in the same period in the Periodic Table of Elernent.

Which of the following is true about the atoms of sodium and argon?

A Have the same number of protons

same number of neufrons

C ./Have the same number of valence electrons

Have the same number of shells filled with electrons

22 In the formation of a covalent-/'

foms of the elements involved

condition, Relative atomic mass: O :16]

,// Its mass 0.8 g

' I Contains 1.505 x 102 ions

,/,W Contains 1.505 xlf molecules

Accept electron

Donate electron

A

B

23 The following equation represents a neutralisation reaction.

Acid + Base --f Salt + - Water

Which of the following pairs of reactants produce aneutralization reaction?

AS and calcium carbonate

acid and magnesium oxide

Hydrochloric acid and sodirnn sulphate

Share electron

Exchange electron

4D Hydrochloric acid and magnesium

a-

24 An i$t is filled with 1800 cm3 ofneon gas at room condition. Calculate the

at room temperature and pressure, Avogadroti mor g{occvpies the volunie of 24 dm3

ii"*b6r :6.oix 1023f

number of pdn atom in the ligbt ?

4.515 x lO22

4.515 x 1023

c 8.03 x tfD 8.03 x 1021

ZS Diagram 4 shows the set-up of the apparatus used to electroplate an iron key with

copper.

lron leyCopper(F) sulphate Kunci besiLarutan

Diagrarn4

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

c

D

Process P

Diagram 5

Freezing

Sublimation

A

C

Anode Cathode

Brown deposit formed Copper foil becomes thicker

Copper foil becomes thinner Brown deposit formed

Brown deposit formed Gas bubbles releasd

\- Copper foil becomss fhinner Gas bubbles released

26 Diagram 5 shows the change of the state ofmatter'

qp%d8eqff

t\

27 The information below describes the characteristics of an element X.

I

rShows different oxidation numbers in their compoundsActs as catalyst in certain reactions

d29 Which pairs of the substances is suitable used to prqpare copper(Il) chloride CuClz salt?

A Copper petal an&hydrochloric acid

II) nitrate andzinc chloride

C /Copper{If) hidroxide and sodium chloride

Copper(Il) oxide and hydrocbloric acid

30 Diagram 7 shows the electron arrangement of a substance formed betweentwo atoms of Q.

DiagramT

Which of the following statements is true about the substance?

Conduct electricity in molten state

The compound has a low melting point

What is X?

Qx Magnesium

Aluminium whTA28 Diagram 6 shows apaftof set up apparatus to determine the empirical formula ofimetal

oxide. I '

Metal oxideH2+

Zinc oxide

Lead(ID oxide

A Consists of ions

'B Dissolves in water

Diagram 6

,h\e

coPPer(Ir) oxide

D kon(IID oxide

31 Diagram 8 shows the apparatus set-up of avoltaic cell.

Zrncplate

Which statements are true?

,^ ,Zincplate acts as positive termfual

n / Copper plate becomes thicker

V( Ztncplatebecomes thinner

ry Elecffons flow from copp€r plate to zinc plate througtr the exte,l:ral circuit

I4d IV

Itr and IV

Copper plate

Dilute sulphuric acid

Time(min)

I and III

II and III

C

D

32 Diagram 9 shows the cooling curve of molten naphthalene.

"Temperature(oC)

Diagram 9

Which of the following staterrents explains about

A Heat is absorbed from. the surroundings\JB All particles are closelypacked together

The temperature decreases evenly

Naphthalene exists as solid and liquid

tr to tz

C

o

Diagram 8

A

33 Diagram 10 shows the electrolysis of 0'0001 mol dm-3 potassium iodide solution.

Carbon electrode X

Diagram 10

What are products forrned at the carbon electodes X and Y?

GB

C

Carbon electrode X Carbon electrode Y

\ Oxvsen/r

Hydrogen

Iodine Hydrogen

Hydrogen Oxygen

Iodine Potassium

elektron arran of an atom of M is 2-8.1 andthe electron34 gement

Carbon electrode Y

0.0001 mol dm-3

potassium iodide solution

arrangement ofan atom of X is 2.6. Elements M and X react to form a compound. Which of the

followingis true about the reaction? I\ . U t

A MarrlnM donates 2 electontr $'v'V/

An atom X receive 2 electron 7S("C A covalent compound is fomred v-

{

-- ..)

I

Vy

l>{

)-

D The compound fonned has chemical fonrrula ND(2

35 The equation shows the reaction between sulpburic acid and potassium hydroxide'

HzSO+ + 2KOH -+KzSOa + 2H2O

A 12.5 crr3

B 25.0 cm3

50.0 cm3

Which of the foitowing substances undergoes sublimation process when heated?

What is the volume of 1..Q mol dnr-3 potassir:rnlydf5xide solution which can neutralizes

25.0 cm3 of 1.0 mol drn'3 sulphuric acid/

D 7o.o crn3

36

10

38

37 Which of the following is true of the oxides of elements in Period 3 of the Periodic Table?

How many zinc atoms are there in 3?-5 gofztnc?

[Avogadro's. : 6.02X 1023 moll , Relative atomic mass of zinc = 65]

.ot x tott c 6.ozx1o22

D 6.ozxlo233.01 X 1023

Table 3 shows the electrons arrangement for ele'lnents Wo X, Y andZ-

The letters used are not the actual symbol of the elernents'

Table 3

Which of the following is an element of P 3, Group 3 and able to form an a:nphoteric

oxide?

AWBX DZ

40 An aqueous solution Q has pH value of 3.Which of the-following is true about Q?

Q produces aFgh concentration of OH- ioninwater

ith an alkali to produce salt and water

colourless phenolphthalein to pink

D Q react with metal carbonate to produces hydroge4'gas.

39

Y

N

Element Electron arrangement

w 2.1

X 2.3

Y 2.8.3

Z 2.8.7

t7

4l Tabl'e 4 shows the electron aranganents for atom of element T and atom of element U.

T 2.4

U 2.8.6

Table 4

Which pair of formula and tlpe ofbond is correct when element T reacts withelement U?

) $i;usffiT TzU Ionic

B .t'lUz lonic

-r' TzU Covalent

/v TUz Covalent

is produced bv the asvoltage produced apparafus set-up as shown in Diagram l1

Diagram 1l

Which of the following statements are tue?

thinnerplate is positive terminal

ion of copper(Il) ion in copper (II) nitrate solution inueasesflow from copper plate to ziic plate through the extemal circuit

I and II

B II and III

Which of the following statement correctly describes hydrochloric acid?'

I StrongacidII Ionises completely in water

m Has a low concentration of hydrogen ions

tV Exist as molecules in water

C I and tV'

D III and IV

II and III

III and I V

12

I and II

I and IV

C

D

44 Diagram 12 below shows part of the procedures in preparation of a salt in the laboratory'

which of the following salts can bgryPared by the method shown above?

O"""*chloride p'*u(II)iodideY Copper(Il) sulphate D Magnesium nitrate

45i'\

lil r

The equation below shows thepnal deco

\tA titf- 'mposition or re'; g of calcium carbonate'

I Relativpa{offi mius : C : 12,O : 16, Ca: 40]

5.60 g

8.24 g

10.0 g

56.0 g w"wC

D

cpP

a

47

46 The percent ageby mass of carbon in the compound, CsHto is"'

L 62.2 %

B 83.3 %

Table 5 shows the melting anaGo-itiogpoints of substances P, Q, R and s.

Table 5

which of the following substances is a liquid at room ternperature?

R

S

L3

Diagam 12

^

Diagram 13 shows a syringe containing oxygen gas under room conditions.

Oxygen

Diagram 13

Howmanymoles of oxygen gas are there in the syringe?of any gur ir i+ amt at room conditionsl

A patient complained of a pain due to an excoss of acid in the stomach. Which substancewill help to relieve the pain?

A Ammonia

Ethanoic acid agnesium hydroxide

Whena riolume-of aqueous efhanotic acid is poured into a volume of sodium hydroxidgwhich of the following will be the products?

/{ Water m Hydrogen

' ,/ yfr{ W ry Sodiumethanoate

l,ti)\/,\ i t'll/'

6024

2460

Sodium chloride

Q,,:;C mandIV

e*uY.

END OF QUESTION PAPER

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