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Keseimbangan Redoks [Subtopik 1.1 & 1.2]

Authored by NUR Moe

Chemistry

10th - 11th Grade

Used 2+ times

Keseimbangan Redoks [Subtopik 1.1 & 1.2]
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11 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 5 pts

Antara berikut, yang manakah berlaku dalam tindak balas penurunan?

Which of the following occurs in reduction reaction?

Menerima oksigen

Gain oxygen

Kehilangan hidrogen

Loss hydrogen

Penambahan elektron

Gain electron

Penambahan nombor pengoksidaan

Increase in oxidation number

2.

MULTIPLE CHOICE QUESTION

15 mins • 5 pts

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Antara berikut, yang manakah benar mengenai persamaan kimia seimbang di bawah ?

Which of the following is true about the balanced chemical equation below?

Hidrogen sulfida alami pengoksidaan dengan kehilangan hidrogen membentuk sulfur

Hydrogen sulphide undergoes oxidation by losing hydrogen forming sulphur

Bromin alami pengoksidaan dengan kehilangan hidrogen membentuk asid hidrobromik

Bromine undergoes oxidation by losing hydrogen forming hydrobromic acid

Hidrogen sulfida ialah agen pengoksidaan

Hydrogen sulphide is an oxidising agent

Bromin ialah agen penurunan

Bromine is a reducing agent

3.

MULTIPLE CHOICE QUESTION

15 mins • 5 pts

Apakah nombor pengoksidaan klorin dalam KClO3?

What is the oxidation number of chlorine in KClO3?

-2

-1

+1

+5

4.

MULTIPLE SELECT QUESTION

15 mins • 5 pts

Manakah antara berikut yang memerlukan angka roman dalam penamaan mengikut IUPAC?

Which of the following compound requires roman numeral in its naming according to IUPAC?

Na2SO4

Al2O3

V2O5

Cu2O

5.

MULTIPLE CHOICE QUESTION

15 mins • 5 pts

Larutan ion Fe3+ boleh ditukarkan kepada ion Fe2+ dengan mencampurkan serbuk zink. Antara berikut, yang manakah dapat menggantikan serbuk zink dalam tindak balas ini?

Fe3+ ion in solution can be converted to Fe2+ ions by adding zinc powder. Which of the following can replace zinc powder in this reaction?

Air bromin

Bromine water

Larutan kalium iodida

Potassium iodide solution

Larutan kalium heksasianoferat(II)

Potassium hexacynaferrate(II) solution

Larutan kalium manganat(VII) berasid

Acidified potassium manganate(VII) solution

6.

MULTIPLE CHOICE QUESTION

15 mins • 5 pts

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Manakah antara pernyataan berikut benar?

Which of the following statement is true?

Elektron bergerak dari elektrod X ke elektrod Y

Electron moves from X electrode to Y electrode

Ferum(II) sulfat mengalami tindak balas pengoksidaan

Iron(II) sulphate undergoes oxidation reaction

Elektron mengalir melalui asid sulfurik untuk melengkapkan litar

Electron flows through sulphuric acid to complete the circuit

Larutan kalium dikromat(VI) berasid berfungsi sebagai agen penurunan

Acidified potassium dichromate(VI) solution acts as reducing agent

7.

MULTIPLE CHOICE QUESTION

15 mins • 5 pts

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Jadual menunjukkan keupayaan elektrod piawai bagi ion logam. P, Q, R dan S bukan merupakan simbol sebenar unsur. Berdasarkan maklumat di atas, yang manakah susunan yang betul mengikut urutan menaik kekuatan agen pengoksidaan?

Table shows standard electrode potential of metal ion. P, Q, R and S are not the actual symbols of elements. Based on the above information, which of the following is the correct order of increasing strength of oxidising agent?

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