soalan. QUESTION 1
soalan. QUESTION 1
soalan. QUESTION 1
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CONFIDENTIAL QB003<br />
SULIT<br />
INSTRUCTION : Answer FOUR (4) from SIX (6) questions.<br />
ARAHAN : Sila jawab EMPAT (4) dari ENAM (6) <strong>soalan</strong>.<br />
<strong>QUESTION</strong> 1<br />
a) What are the meaning of<br />
i) Basic quantities ( 2 marks)<br />
ii) Derived quantities ( 2 marks)<br />
b) List FIVE (5) basic quantities with the unit. (10 marks)<br />
c) Give THREE (3) examples of derived quantities ( 3 marks)<br />
d) Convert the following units<br />
i) 1 km 2 to m 2<br />
ii) 7.2 kmh -1 to ms -1<br />
iii) 7.89 ms to kmh -1<br />
iv) 5.7 cm to m ( 8 marks )<br />
2
CONFIDENTIAL QB003<br />
SULIT<br />
SOALAN 1<br />
a) Apakah yang dimaksudkan dengan<br />
i) kuantiti asas ( 2 markah )<br />
ii) kuantiti terbitan ( 2 markah )<br />
b) Senaraikan LIMA (5) KUANTITI ASAS berserta unitnya. ( 10markah)<br />
c) Berikan TIGA (3) contoh kuantiti terbitan ( 3 markah )<br />
d) Tukarkan unit-unit berikut:<br />
i) 1 km 2 kepada m 2<br />
ii) 7.2 kmj -1 kepada ms -1<br />
iii) 7.89 ms kepada kmj -1<br />
iv) 5.7 cm kepada m ( 8 markah )<br />
3
CONFIDENTIAL QB003<br />
SULIT<br />
<strong>QUESTION</strong> 2<br />
a) An air force jet will departure from the base within 94m in 2.5 seconds. Calculate<br />
the speed of the jet?<br />
( 5 marks )<br />
b) A student who is driving a car with the speed of 108 kmj -1 suddenly saw an<br />
obstacle in the middle of the road within 80m from his car. He quickly stepped on<br />
the break and the car stopped within 6 minutes.<br />
i) Find the acceleration of the car when it stop.<br />
4<br />
(5 marks)<br />
ii) How far the car has been drawn before it stopped. Did the car hit the<br />
obstacle before it stopped?<br />
(5 marks)<br />
c) An Object with the mass 0.5kg is moving with the uniform velocity when a force<br />
of 4N act on it.<br />
i) Find the force that against the movement of the object.<br />
(5 marks )<br />
ii) If the force increase from 4N to 10N,find the acceleration of the<br />
object.<br />
( 5 marks)
CONFIDENTIAL QB003<br />
SULIT<br />
SOALAN 2<br />
a) Sebuah jet pejuang akan bergerak keluar dari landasannya daripada keadaan rehat<br />
sejauh 94 m dalam masa 2.5 saat. Berapakah laju jet pejuang tersebut?<br />
( 5markah )<br />
b) Seorang pelajar yang memandu keretanya pada halaju 108 kmj -1 terlihat satu<br />
halangan di tengah jalan pada jarak 80m dihadapannya. Dia menekan brek dengan<br />
serta-merta dan berjaya menghentikan keretanya dalam masa 6 saat.<br />
i. Berapakah nyahpecutan kereta itu? (5 markah)<br />
ii. Berapakah jarak yang dilalui kereta sebelum berhenti? Adakah pelajar<br />
tersebut terlanggar halangan tersebut?<br />
5<br />
(5 markah)<br />
c) Satu objek yang berjisim 0.5kg bergerak dengan halaju seragam apabila satu daya<br />
4N bertindak ke atasnya?<br />
i. berapakah daya geseran yang menentang gerakan objek itu?<br />
(5 markah )<br />
ii. Jika daya tindakan bertambah dari 4 N ke 10 N , berapakah pecutan objek<br />
itu?<br />
( 5 markah)
CONFIDENTIAL QB003<br />
SULIT<br />
<strong>QUESTION</strong> 3<br />
a) A group of science students have take value of pH scale for a few solution .The result<br />
are record in the table below.<br />
Which the solutions are:<br />
solution pH value<br />
A 7<br />
B 10<br />
C 8<br />
D 3<br />
E 4<br />
F 1<br />
i) Concentrate hydrochloric acid<br />
ii) Concentrate sodium hydroxide<br />
iii) Toothpaste<br />
iv) Vinegar<br />
v) Orange<br />
vi) Distill water (6 marks)<br />
b) According to the table in question (a), which are 2 solutions will produce a neutral<br />
solution when it reacts? What reaction was happen?<br />
(4 marks)<br />
c) Calculate the concentration of:<br />
i) Hydrogen ion in solution E ( 5 marks)<br />
ii) Hydroxide ion in solution C ( 5 marks)<br />
d) Apple contain organic acid called Malik acid C4H4O4, one type of WEAK ACID.<br />
What is the meaning of WEAK ACID?<br />
(2 marks)<br />
e) What is the meaning of STRONG ACID? Give ONE (1) example of STRONG<br />
ACID?<br />
( 3 marks)<br />
6
CONFIDENTIAL QB003<br />
SULIT<br />
SOALAN 3<br />
a) Sekumpulan pelajar sains telah mengambil nilai skala pH bagi beberapa larutan.<br />
Hasil keputusan telah direkodkan dalam jadual berikut.<br />
Nilai pH<br />
Larutan<br />
A 7<br />
B 10<br />
C 8<br />
D 3<br />
E 4<br />
F 1<br />
Yang manakah antara larutan tersebut dapat dijangkakan adalah<br />
i) Asid hidroklorik pekat<br />
ii) Natrium hidroksida pekat<br />
iii) Ubat gigi<br />
iv) Cuka<br />
v) Buah oren<br />
vi) Air suling (6 markah)<br />
b) Daripada jadual dalam <strong>soalan</strong> (a), yang manakah antara 2 larutan akan menghasilkan<br />
satu larutan neutral apabila bertindakbalas? Apakah tindakbalas yang berlaku?<br />
( 4 markah)<br />
c) Kirakan kepekatan :<br />
i) ion hidrogen di dalam larutan E. ( 5 markah)<br />
ii) ion hidroksida di dalam larutan C ( 5 markah)<br />
d) Epal mengandungi asid organik iaitu asid malik C4H4O4,sejenis asid lemah. Apakah<br />
yang dimaksudkan dengan ASID LEMAH?<br />
( 2 markah)<br />
e) Apakah yang dimaksudkan dengan ASID KUAT ? Berikan SATU (1) contoh asid<br />
kuat. ( 3 markah)<br />
7
CONFIDENTIAL QB003<br />
SULIT<br />
<strong>QUESTION</strong> 4<br />
a) Give the definition of REDOX REACTION in terms of oxidation number.<br />
(3 marks)<br />
b) State the characteristic that cause the oxidation and reduction reaction.<br />
8<br />
( 6 marks)<br />
c) State the substance which occur oxidation and reduction. Recognize the substance<br />
which react as an oxidation agent and a reduction agent for the chemistry equation.<br />
i) Cu + 2H2SO4 CuSO4 + SO2 + 2H2O ( 5 marks )<br />
ii) 3SO2 + 2 HNO3 + 2H2O 3H2SO4 + 2NO ( 5 marks )<br />
d) Recognize the changes which is oxidation and reduction for the compound below<br />
and state the reason.<br />
i) BiO3 - to Bi 3+<br />
( 2 marks )<br />
ii) SO2 to SO3 ( 2 marks )<br />
iii) H2SO4 to HSO4 - ( 2 marks )
CONFIDENTIAL QB003<br />
SULIT<br />
SOALAN 4<br />
a) Berikan definisi TINDAKBALAS REDOKS dari segi nombor pengoksidaan<br />
( 3 markah)<br />
b) Nyatakan ciri-ciri yang menyebabkan berlakunya tindakbalas pengoksidaan dan<br />
penurunan. ( 6 markah)<br />
c) Nyatakan bahan yang telah mengalami pengoksidaan dan penurunan.Kenalpasti bahan<br />
yang bertindak sebagai agen pengoksidaan dan agen penurunan bagi persamaan kimia<br />
berikut :<br />
i) Cu + 2H2SO4 CuSO4 + SO2 + 2H2O ( 5 markah )<br />
ii) 3SO2 + 2 HNO3 + 2H2O 3H2SO4 + 2NO ( 5 markah )<br />
d) Bagi sebatian di bawah, kenalpastikan perubahan sama ada berlakunya pengoksidaan<br />
dan penurunan serta nyatakan kenapa ia berlaku.<br />
i) BiO3 - kepada Bi 3+<br />
( 2 markah )<br />
ii) SO2 kepada SO3 ( 2 markah )<br />
iii) H2SO4 kepada HSO4 - ( 2 markah )<br />
9
CONFIDENTIAL QB003<br />
SULIT<br />
<strong>QUESTION</strong> 5<br />
a) What is ENERGY ? ( 2 marks )<br />
b) Give 3 types of energy. (3 marks )<br />
c) A car with a mass 100 kg start the journey until achieve 60 ms -1 in 15 seconds.<br />
Calculate :<br />
i) initial kinetic energy<br />
ii) final kinetic energy<br />
iii) how much work have be done ( 15 marks)<br />
d) Calculate the oxidation number for sulfur in:<br />
i) SO4 2-<br />
ii) Na2S2O3 ( 5 marks )<br />
10
CONFIDENTIAL QB003<br />
SULIT<br />
SOALAN 5<br />
a) Apakah yang dimaksudkan dengan TENAGA ? ( 2 markah)<br />
b) Berikan TIGA (3) jenis tenaga . ( 3 markah)<br />
c) Sebuah kereta berjisim 100 kg memulakan perjalanannya sehingga mencapai halaju<br />
60 ms -1 dalam masa 15 saat. Kirakan:<br />
i) Tenaga kinetik awal<br />
ii) Tenaga kinetik akhir<br />
iii) Kerja yang dilakukan ( 15 markah )<br />
d) Kirakan nombor pengoksidaan bagi sulfur di dalam<br />
i) SO4 2-<br />
ii) Na2S2O3 ( 5 markah )<br />
11
CONFIDENTIAL QB003<br />
SULIT<br />
<strong>QUESTION</strong> 6<br />
a) Organic chemistry is a group of compound matter contains carbon and hydrogen<br />
(hydrocarbon group).There are 3 main group in organic chemistry which is alkanes,<br />
alkenes and alkunes. By taking example 5 carbon (5C),<br />
i) Give the name of hydrocarbon compound 5C according the 3 group.<br />
( 3 marks)<br />
ii) Write the molecule formulae for hydrocarbon 5C for each group.<br />
( 3 marks)<br />
iii) Draw the structured formulae for hydrocarbon 5C according the group.<br />
( 3 marks)<br />
b) State the name for hydrocarbon chain below according to IUPAC nomenclature.<br />
i)<br />
ii)<br />
iii)<br />
CH3 CH3<br />
CH CH2 CH CH2 CH3<br />
CH3 CH3<br />
CH3 C = CH CH3<br />
CH3<br />
CH3 CH2 CH CH2 CH3<br />
CH2<br />
CH3<br />
c) What is the meaning of saturated hydrocarbon and unsaturated hydrocarbon?<br />
12<br />
( 2 marks)<br />
( 2 marks )<br />
( 2 marks )<br />
( 4 marks)<br />
d) Give the meaning of polymer. State TWO (2) tpe of polymer and give TWO (2)<br />
examples for each polymer. ( 6 marks )
CONFIDENTIAL QB003<br />
SULIT<br />
SOALAN 6<br />
a) Kimia organik ialah kumpulan unsur sebatian yang mengandungi karbon dan hidrogen<br />
( iaitu kumpulan hidrokarbon). Terdapat tiga kumpulan utama dalam kimia organik<br />
iaitu alkana, alkena dan alkuna. Dengan mengambil contoh 5 karbon (5C),<br />
i) Berikan nama sebatian hidrokarbon 5C mengikut nama tiga kumpulan<br />
tersebut.<br />
(3 markah)<br />
ii) Tuliskan formula molekul hidrokarbon 5C bagi setiap kumpulan tersebut.<br />
( 3 markah)<br />
iii) Lukiskan formula struktur hidrokarbon 5C mengikut setiap kumpulan<br />
tersebut. ( 3 markah)<br />
b) Nyatakan nama bagi rantaian hidrokarbon di bawah mengikut Sistem Penamaan<br />
IUPAC.<br />
i)<br />
ii)<br />
iii)<br />
CH3 CH3<br />
CH CH2 CH CH2 CH3<br />
CH3 CH3<br />
CH3 C = CH CH3<br />
CH3<br />
CH3 CH2 CH CH2 CH3<br />
CH2<br />
CH3<br />
13<br />
( 2 markah)<br />
( 2 markah )<br />
( 2 markah )<br />
c) Apakah yang dimaksudkan dengan hidrokarbon tepu dan hidrokarbon tak tepu?<br />
( 4 markah )<br />
d) Berikan maksud polimer.Nyatakan DUA (2) jenis polimer serta berikan DUA (2)<br />
contoh bagi setiap polimer. ( 6 Markah)