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SPM Chemistry A xplosive Module (Chemistry A Ticket For “U” ) GREEN ZONE [GZ]
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Section B / Bahagian B
[20 marks] / [20 markah]

Answer any one question form this section.
Jawab mana – mana satu soalan daripada bahagian ini.

7(a) Diagram 7 shows the apparatus set-up for redox reactions involving electron transfer at a
distance.
Rajah 7 menunjukkan susunan radas bagi tindak balas redoks yang melibatkan pemindahan
elektron pada satu jarak.

Graphite electrode
Elektrod grafit

Iron(II) sulphate solution
Larutan ferum(II)sulfat Acidified potassium dichromate(VI) solution
Larutan kalium dikromat(VI)berasid
Dilute sulphuric acid
Asid sulfurik cair
U-tube
Tiub-U

Diagram 7/ Rajah 7

Based on Diagram 7, explain how the transfer of electron occurred in the U-tube.
In your description state the substance that undergoes oxidation and reduction.
Berdasarkan Rajah 7, terangkan bagaimana pemindahan elektron itu berlaku dalam
tiub-U.
Dalam penerangan anda nyatakan bahan mengalami pengoksidaan dan penurunan.
[4M]

(b) Proton Holding Berhad is a Malaysian automotive company and automobile corporation
active in automobile design, manufacturing, distribution and sales. Proton, predominantly
reliant on its domestic market is presently undergoing a transformation process as part of
a long-term turnaround plan with hopes of returning to profitability and regaining an
international presence.
You are selected to work at the car factory. Suggest the way to control the rusting and
give a reason for your answer of the following parts of cars:
Proton Holding Berhad ialah sebuah syarikat Malaysia automotif dan perbadanan
automobil yang aktif dalam rekabentuk automobil, pembuatan, pengedaran dan
penjualan. Proton, sebahagian besar bergantung kepada pasaran tempatan dan kini
mengalami proses transformasi sebagai sebahagian daripada pelan pemulihan jangka
masa panjang dengan harapan mendapat keuntungan dan mendapat tempat di pasaran
antarabangsa.

Sektor Pembelajaran, Jabatan Pendidikan Negeri Sabah | 2020 144