Page 137 - MODUL KIMIA A+XPLOSIVE SPM (LATEST)

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SPM Chemistry A xplosive Module (Chemistry A Ticket For “U” ) GREEN ZONE [GZ]

3. Diagram 3.1 shows the apparatus set-up from the combination of cell I and cell II.
Rajah 3.1 menunjukkan susunan radas daripada gabungan sel I dan sel II.

Zinc
zink

(a) State the name of gas produced at electrode P in Cell I.
Nyatakan nama gas yang terhasil pada elektrod P di Sel I.

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[1M]
(b) (i) What should be done in the experiment if a student wishes to collect a colourless gas at
the anode in Cell I, without changing the type of solution used?
Apakah yang perlu dilakukan dalam eksperimen itu jika seorang murid ingin mengumpul
gas tidak berwarna di anod dalam Sell I, tanpa mengubah jenis larutan yang digunakan?

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[1M]
(ii) Give one reason for the formation of colourless gas based on your answer in b (i).
Berikan satu sebab bagi pembentukan gas tanpa warna berdasarkan jawapan anda di
b(i).

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[1M]
(iii) Write the half equation of reaction occurred at the anode in 3(b)(i)
Tulis setengah persamaan bagi tindak balas yang berlaku pada anod di 3(b)(i).

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[2M]
(iv) State one application of cell I in industry.
Nyatakan satu aplikasi sel I dalam industry.

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[1M]

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