Page 5 - Get Ready SPM 2022 - Kimia Tg 4

Kimia Tingkatan 4 Ujian 1
Currently, the development of food technology is (ii) Terangkan bagaimana keracunan
occurring rapidly. Briefly describe the development merkuri berlaku melalui tumpahan 1
of technology in food preservation from ancient merkuri.
times until the present. State one effect of the Explain how mercury poisoning occurs through
technological development. SK 1.1 TP 2 a mercury spill. Ujian
[4 markah / 4 marks]
(iii) Nyatakan dua tindakan yang perlu
(c) Rajah 2 menunjukkan dua contoh peralatan diambil sekiranya keracunan merkuri
keselamatan di dalam makmal. berlaku kepada seseorang?
Diagram 2 shows two examples of safety equipment State two actions that need to be taken if
in the laboratory. mercury poisoning occurs to someone.
[10 markah / 10 marks]

Bahagian C

3. (a) Berikut menunjukkan maklumat tentang dua
contoh bahan kimia yang lazim digunakan
dalam makanan.
The following shows the information on two
examples of chemicals commonly used in food.

Bahan kimia A: Melambatkan
pertumbuhan bakteria
supaya makanan dapat
disimpan lebih lama.
Rajah 2 / Diagram 2 Chemical A: Slows down the growth of
bacteria to make the food
last longer.
Namakan kedua-dua peralatan keselamatan

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dalam Rajah 2. Nyatakan fungsi setiap
Bahan kimia B: Mencegah makanan
peralatan tersebut.
Name both safety equipment in Diagram 2. State berminyak daripada
the function of each equipment. SK 1.3 TP 2 Chemical B: menjadi tengik.
Prevents oily food from
[4 markah / 4 marks]
becoming rancid.
(d) Semasa menjalankan eksperimen di makmal,
Berdasarkan maklumat di atas, nyatakan
rakan anda telah menjatuhkan termometer
bahan kimia A dan bahan kimia B.
merkuri secara tidak sengaja. Termometer Based on the above information, state the chemical
tersebut telah pecah dan mengakibatkan A and chemical B. SK 1.1 TP 2
tumpahan merkuri. Tumpahan merkuri boleh
[2 markah / 2 marks]
menyebabkan seseorang itu terdedah kepada
keracunan merkuri.
While carrying out an experiment in the laboratory, (b) Seorang pembantu makmal menerima
your friend accidentally dropped a mercury sebotol asid sulfurik pekat, sebotol etanol dan
thermometer. The thermometer broke and caused sebotol cecair bromin daripada pembekal.
mercury spill. Mercury spill can cause a person to Bagaimanakah cara penyimpanan yang betul
be exposed to mercury poisoning. bagi bahan-bahan kimia tersebut di dalam
SK 1.3 TP 3 KBAT Mengaplikasi makmal? Terangkan jawapan anda.
A laboratory assistant received a bottle of
concentrated sulphuric acid, a bottle of ethanol and
(i) Nyatakan empat langkah yang perlu a bottle of bromine liquid from the supplier. What
diambil sebaik sahaja tumpahan merkuri
are the correct storage methods for the chemicals in
berlaku. the laboratory? Explain your answer.
State four steps that need to be taken as soon SK 1.3 Mengaplikasi
as mercury spill occurs. TP 3 KBAT
[6 markah / 6 marks]

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