Chem p2 Final 2013

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[Lihat halaman sebelah

2013 Hak Cipta SABKL SULIT

1

4541/2

Chemistry

Paper 2

Nov 20132 jam

SEKOLAH MENENGAH KEBANGSAAN AMINUDDIN BAKI

KUALA LUMPUR

PEPERIKSAAN AKHIR TAHUN

2013

PERCUBAAN SPM TAHU7

CHEMISTRY

FORM 4

Paper 2

2 hours 30 minutes

JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU

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

1. Tuliskannama dan kelas anda pada ruanganyang disediakan.

2. Calon dikehendaki membaca maklumat di

halaman BELAKANG.

Kertas soalan ini mengandungi 17 halaman bercetak

Bahagian Soalan MarkahPenuh MarkahDiperoleh

A

1 09

2 09

3 09

4 10

5 11

6 12

B7 20

8 20

C9 20

10 20Jumlah

NAMA CALON

TINGKATAN

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2013 Hak Cipta SABKLSULIT

2

SECTION A[ 60 marks ]

Answerallquestions in this section.

1. Diagram 1 shows part of Periodic Table of Elements.

A, B, C, D, E, F and G do not represent the actual symbol of the elements.

Diagram 1

Using the letters in above Periodic Table of Elements, answer the following questions.

(a) Draw the electron arrangement of atom F

[1 mark]

(b) Which of the element exist as monoatomis gas?

...........

[1 mark]

(c) Element E is more electronegative than element D. Explain why

...........

[3 mark]

ForExaminers

Use

1(a)

1

1(b)

1

1(c)

1

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(d) State onespecial characteristic of element G

...........

[1 mark

(e) Element A reacts with element B to form an ionic compound

(i) State oneproperty of the compound formed

...........

[1 mark]

(ii) Write the chemical equation of the reaction.

...........

[2 mark]

1(d)

1

1(e)(i)

1

1(e)(ii)

1

ForExaminers

Use

Total A1

10

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2. Diagram 2.1 shows the heating curve of solid Q at room condition.

Diagram 2.1

(a) (i). What is the melting point of substance Q?

..........

[1 mark]

(ii) What is the physical state of substance Q from point S to T?

...........

[1 mark](iii) Explain why there is no change in temperature from S to T?

...........

[2 marks]

(d) Draw the arrangement of particles of substance Q from point T to U.

[1 mark]

ForExaminers

Use

2(a)

1

2(b)

2

2(c)

2

2(e)

1

2(d)

1

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(b)Table 2.2 shows the proton number and nucleon number of elements W, X, Y

and Z

Element Proton number Nucleon number

W 6 12

X 8 16Y 8 17

Z 15 31

Table 2.2

(i) What is the meaning of nucleon number?

...........

[1 mark]

(ii) Which atoms are isotopes?

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

[1 mark]

(iii) Explain your answer in b(ii)

...........

...

[1 mark]

(iv) Compare atomic size of Y and Z.

......

[1 mark]

(v) Give reason for your answer in 3(c)(i).

..

..[1 mark]

2(f)

1

2(g)

1

Total A2

10

ForExaminers

Use

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3. Diagram 3 shows a series of reactions for the production of magnesium nitrate and

substance G with magnesium as the initial reactant.

Diagram 3

(a)

Name the solution E and substance G

Solution E : .

Substance G : .

[2 marks]

(b) Name gas R and explain how to identify the gas?

..

..

[2 marks]

(c) In phase I, 20 cm3of hydrochloric acid 1.0 mol dm-3is reacted with excess of

magnesium powder.

(i) Write the chemical equation for this reaction.

[2 marks]

ForExaminers

Use

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(ii)

Calculate the maximum amount of volume of gas R that can be produced at

room condition.

[Molar volume at room condition : 24 dm-3mol-1]

[2 marks]

(d) Name the type of reaction that took place in phase II

..

[1 mark]

(e) Explain how you can separate substance G from the product mixture.

.

.

[2 marks]

Total A3

10

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4.

Two elements X and Y can be reacted to form a compound. Figure 4 shows the

electron arrangement of the particle in the compound.

Figure 4

(a)

What is the type of particle of this compound?

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

[1 mark]

(b) What is the proton number of element Y?

.

[1 mark]

(c)

Write the formula of the compound.

.

[1 mark]

(d) Element Y can react with Lithium to form a compound.

(i) What type of chemical bond formed?

.

[1 mark]

(ii) Draw the electron arrangement of the compound formed.

[Proton number of lithium : 3]

ForExaminers

Use

5(a)(i)

1

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[2 marks]

(iii)

Compare the electrical conductivity of compound formed between element Xand Y with compound formed between Lithium and element Y.

.

.

[2 mark]

(iv) Explain your answer in d (iii)

ForExaminers

Use

5(d)(i)

2

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...........

...

..

..

[2 marks]

5.

Hydrochloric acid is a strong acid. Table 5 shows two solution of hydrochloric acid

P and Q with different concentration.

Hydrochloric acid solution Concentration (mol dm-

)

P 0.100

Q 0.001

Table 5

(a)State the meaning of an acid.

5(d)(ii)

1

ForExaminers

Use

6(a)

1

Total A4

10

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

.

[1 mark]

(b)

Why hydrochloric acid is a strong acid?

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

...

[1 mark]

(c)

Which solution with gives a lower pH values?

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

[1 mark]

(d)

Give onereason for your answer in (c)

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

..

[1 mark]

(e)Figure 5.2 shows four test tubes contain dry glacial ethanoic acid, aqueous

solution of ethanoic acid, and dilute hydrochloric acid.

Figure 5.2

(i) State the colour change of litmus paper in test tube Q and R.

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

[1 mark]

(ii)Is there any change of colour of the litmus paper in test tube P? Explain why.

.

[2 marks]

6(b)

1

6(d)

1

6(e)

1

6(c)

1

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(iii)

Write the formula of ion that caused the colour changed of the litmus paper.

[1 mark]

(iv) Calcium carbonate powder is added into test tube R. Write the chemical

equation of the reaction that take places

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

[2 marks]

6.

Diagram 6 shows the process to industrially manufacture of ammonia.

Diagram 6

(a)Name the process that produce ammonia

.

[1 mark]

(b)Write the chemical equation for the process in (a)

..

[1 mark]

(c)What are the conditions for this process to produce maximum of ammonia?

Catalyst : .

Temperature : .

Pressure : .

[3 marks]

(d)Ammonia gas can react with sulphuric acid to produce a salt fertilizer.

Name the salt produce

[1 mark]

6(f)(i)

1

ForExaminers

Use

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(e)Write the chemical equation to produce salt in (d)

[2 marks]

(f)

The reaction between ammonia and carbon dioxide produce urea, CO(NH2)2andwater.

Calculate the percentage of mass of nitrogen in the urea.

[Relative Atomic Mass: H; 1, C; 12, N; 14, O; 16]

[2 marks]

(a)

What is the name of the process to produce sulphuric acid?

..

[1 mark]

Section C

Total A6

12

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( 20 marks )

Answer any onequestions from this section

9 (a) Table 9 shows the chemical symbols which represent three elements,

X, Y and Z with proton number and nucleon number.

Elements Proton number Nucleon number

X 11 23

Y 17 35

Z 6 12

Table 9

(i)

Write the electron arrangement of atoms X and Y.[ 2 marks ]

(ii) The reaction between atoms of X and Y forms an ionic compound

whereas the reaction between atom of Y and Z forms a covalent compound.

Based on the above statement, explain how these are formed.

[ 12 marks ]

(iii) Give three differences between a covalent compound and an ionic

compound.[ 6 mark ]

10 Explain the changes in the properties of period 3 elements across the period from left to

right with reference to

(a) metallic nature

[ 6 marks ]

(b) electronegativity

[ 6 marks]

(c) basicity and acidity of their oxides

[ 8 marks]

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MAKLUMAT UNTUK CALON

1. Kertas soalan ini mengandungi tiga bahagian: Bahagian A, Bahagian Bdan Bahagian

C.

2. Jawab semuasoalan dalam Bahagian A. Tulis jawapan bagi Bahagian Adalam ruang

yang disediakan dalam kertas soalan.

3. Jawab satusoalan daripada Bahagian B dan satusoalan daripada Bahagian C.

Tuliskan jawapan bagi Bahagian Bdan Bahagian Cpada halaman bergaris dibahagianakhir kertas soalan ini. Jawab Bahagian B dan Bahagian C dengan terperinci.

Anda boleh menggunakan persamaan, gambar rajah, jadual, graf dan cara lain yang

sesuai untuk menjelaskan jawapan anda.

4. Tunjukkan kerja mengira, ini membantu anda mendapatkan markah.

5. Sekiranya anda hendak membatalkan sesuatu jawapan, buat garisan di atas jawapan itu.

6. Rajah yang mengiringi soalan tidak dilukis mengikut skala kecuali dinyatakan.

7. Markah yang diperuntukkan bagi setiap soalan atau ceraian soalan ditunjukkan dalam

kurungan.

8. Masa yang dicadangkan untuk menjawab Bahagian Aialah 90 minit, Bahagian Bialah

30 minit dan Bahagian Cialah 30 minit.

9. Anda dibenarkan menggunakan kalkulator saintifik yang tidak boleh diprogramkan.

10. Serahkan semua kertas jawapan anda di akhir peperiksaan.

INFORMATION FOR CANDIDATES

1. This question paper consists of three sections: Section A, Section Band Section C.

2. Answer all questions in Section A. Write your answers for Section Ain the spaces

provided in the question paper.

3. Answer onequestion from Section Band onequestion from Section C.

Write your answers for Section Band Section Cin the lined pages at the end of the

question paper. Answer questions in Section B and Section C in detail. You may use

equations, diagrams, tables, graphs and any other suitable method to explain your answer.

4. Show your working in calculations, it may help you to get marks.

5. If you wish to cancel any answer, neatly cross out the answer.

6. The diagrams in the questions are not drawn to scale unless stated.

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7. Marks allocated for each question or parts are shown in brackets.

8. The time suggested to complete Section Ais 90 minutes, Section Bis 30 minutes and

Section Cis 30 minutes.

9. You may use a non-programmable scientific calculator.

10. Hand in all your answer sheets at the end of the examination.

Chem p2 Final 2013

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