Page 15 - MODUL KIMIA A+XPLOSIVE SPM (LATEST)

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SPM Chemistry A xplosive Module (Chemistry A Ticket For “U”) RED ZONE [RZ]

Which pair of formula and type of bond is correct when element T reacts with element U?
Antara pasangan formula dan jenis ikatan yang manakah benar apabila unsur T
bertindak balas dengan unsur U?
Formula Type of bonding
Formula Jenis ikatan
A T 2U Ionic / Ion
B TU 2 Ionic / Ion
C T 2U Covalent / Kovalen
D TU 2 Covalent / Kovalen

14 Copper(II) sulphate is an electrolyte. Which of the following is true about copper(II)
sulphate?
Kuprum(II) sulfat ialah suatu elektrolit. Antara yang berikut, yang manakah benar
tentang kuprum(II) sulfat?

A It conducts electricity in the solid state only.
Mengkonduksikan elektrik dalam keadaan pepejal sahaja
B It conducts electricity in the molten state only.
Mengkonduksikan elektrik dalam keadaan leburan sahaja
C It conducts electricity in the solid and molten state only.
Mengkonduksikan elektrik dalam keadaan pepejal dan leburan
D It conducts electricity in the molten state or in an aqueous solution
Mengkonduksikan elektrik dalam keadaan leburan atau larutan akueus

15 Which of the following equations would represent the reaction that occurs at the cathode
during the electrolysis of molten lead (II) bromide?
Manakah antara persamaan berikut menunjukkan tindakbalas yang berlaku di katod
semasa elektolisis leburan plumbum (II) bromida?
-
-
2+
-
A 2Br  Br 2 + 2e C Pb  Pb + 2e
2+
-
-
-
B 2Br + 2e  Br 2 D Pb + 2e  Pb

16 Mary can electroplate her copper key with silver through electrolysis by
Mary boleh menyadur kunci kuprumnya dengan logam argentum melalui elektolisis
dengan
A using silver sulphate solution as the electrolyte
menggunakan larutan argentum sulfat sebagai elektolit
B passing electricity for 5 minutes only
mengalirkan arus elekrik selama 5 minit sahaja
C using copper key as the anode
menggunakan kunci kuprum sebagai anod
D using pure silver as the cathode
menggunakan logam argentum sebagai katod

Sektor Pembelajaran, Jabatan Pendidikan Negeri Sabah | 2020 14