REDOX EQULIBRIUM

• Colourless to brown / Tidak berwarna kepada perang

• Brown to colourless / Perang kepada tidak berwarna

• Colourless to green / Tidak berwarna kepada hijau

• Green to brown / Hijau kepada perang

• The blue colour of the mixture becomes colourless / Warna biru campuran menjadi tidak berwarna

• Zinc plate becomes thinner as it undergoes reduction / Kepingan zink semakin menipis kerana ia mengalami penurunan

• The oxidation number of zinc decreases from +2 to 0 / Nombor pengoksidaan zink berkurang daripada +2 kepada 0

• The oxidation number of copper increases from 0 to +2 / Nombor pengoksidaan kuprum bertambah daripada 0 kepada +2

• Copper(II) carbonate / Kuprum(II) karbonat

• Lead(II) bromide / Plumbum(II) bromida

• Zinc carbonate / Zink karbonat

• Zinc nitrate / Zink nitrat

In which apparatus set-up will the bulb light up? / Dalam susunan radas manakah mentol akan menyala?

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• Zinc, Iron / Zink, Besi

• Magnesium, Copper / Magnesium, Kuprum

• Magnesium, Carbon/ Magnesium, Karbon

• Zinc, Copper/ Zink, Kuprum

Which of the following is an oxidation process? / Antara berikut, yang manakah proses pengoksidaan?

• Loses of oxygen / Kehilangan oksigen

• Gain of hydrogen / Menerima hidrogen

• Loses of electron / Kehilangan elektron

• Decrease in oxidation number / Pengurangan nombor pengoksidaan

Which of the following reactions is not a redox reaction? / Antara berikut, tindak balas yang manakah bukan tindak balas redoks?

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• ions / ion

• atoms / atom

• protons / proton

• electrons / elektron

• replacing the silver chloride solution with silver nitrate solution. / menggantikan larutan argentum klorida dengan larutan argentum nitrat.

• using alternating current instead of direct current. / menggunakan arus ulang-alik dan bukannya arus terus.

• cleaning the silver metal with sand paper. / membersihkan logam argentum dengan kertas pasir

• reversing the terminals of the battery. / menterbalikkan terminal bateri.

• Impure copper plate at anode becomes thinner / Plat kuprum tak tulen di anod menipis

• Electrons flow from the impure copper to the pure copper / Elektron mengalir daripada kuprum tak tulen kepada kuprum tulen

• Brown solid is deposited on the pure copper plate / Mendakan perang termendak pada plat kuprum tulen

• Intensity of the blue colour of copper(II) sulphate solution becomes paler / Keamatan warna biru larutan kuprum(II) sulfat semakin pudar