Elektrolisis

Diagram above shows the electrolysis of lead(II) chloride.Which of the following statements are true about the process?

Rajah diatas menunjukkan elektrolisis plumbum(II) klorida.Antara pernyataan yang berikut, manakah benar tentang proses tersebut?

I Electrode P is the cathode.

Elektrod P ialah katod.

II Anions are attracted to electrode P.

Anion-anion tertarik ke elektrod P.

III Cations are discharge at electrode Q.

Kation-kation dinyahcas pada elektrod Q.

• I and II only/I dan II sahaja

• I and III only/I dan III sahaja

• II and III only/II dan III sahaja

• I, II and III/I,II dan III

What are the products will form at electrode P and Q respectively?

Apakah hasil tindak balas yang akan terbentuk masing-masing pada elektrod P dan Q?

• P:Lead oxide/Plumbum oksida

  Q:Chlorine gas/Gas klorin

• P:Lead metal/Logam plumbum

  Q:Hydrogen gas/Gas hidrogen

• P:Hydrogen gas /Gas hidrogen

  Q:Lead oxide/Plumbum oksida

• P:Chlorine/Gas klorin

  Q:Lead metal/Logam plumbum

Diagram above shows the electroplating of an iron spoon.Which of the following is suitable to be used as the electrolyte?

Rajah diatas menunjukkan penyaduran sudu besi.Antara yang berikut, manakah sesuai digunakan sebagai elektrolit?

• Iron (II) sulphate

  Ferum (II) sulfat

• Copper (II) sulphate

  Kuprum (II) sulfat

• Chromium nitrate

  Kromium nitrat

• Sodium hydroxide

  Natrium hidroksida

Which of the following is not true when the switch is turned on for an hour?

Antara yang berikut, manakah tidak benar apabila suis dihidupkan selama satu jam?

• The anode becomes thinner.

  Anod menjadi semakin nipis.

• Impurities found at the base of the container.

  Bendasing terenap di dasar bekas.

• The concentration of electrolyte decreases.

  Kepekatan elektrolit menurun.

• A brownish layer is found on the iron spoon.

  Lapisan perang terbentuk pada sudu besi.

Which of the following is not a primary cell?

Antara yang berikut, manakah bukan sel primer?

• Dry cell

  Sel kering

• Alkaline battery

  Bateri alkali

• Nickel-cadmium battery

  Bateri nikel-kadmium

• Silver oxide-mercury battery

  Bateri argentum oksida-merkuri

Diagram above shows a simple cell.Which of the following pairs of metals will have highest voltage?

Rajah diatas menunjukkan satu sel ringkas.Antara pasangan logam berikut, manakah memberi voltan yang paling tinggi?

• Metal J/Logam J:Copper/Kuprum

  Metal K/Logam K:Magnesium/Magnesium

• Metal J/Logam J:Zinc/Zink

  Metal K/Logam K:Aluminium/Aluminium

• Metal J/Logam J: Aluminium/Aluminium

  Metal K/Logam K:Iron/Besi

• Metal J/Logam J:Magnesium/Magnesium

  Metal K/Logam K:Lead/Plumbum

What are the advantages of lead-acid accumulator over nickel-cadmium battery?

Apakah kelebihan akumulator asid-plumbum berbanding dengan bateri nikel-kadmium?

I Long-lasting

Tahan lebih lama

II Produces higher and more stable voltage

Menghasilkan voltan tinggi dan stabil

III Has a low discharge rate

Mempunyai kadar nyahcas yang rendah

• I and II only/I dan II sahaja

• I and III only/I dan III sahaja

• II and III only/II dan III sahaja

• I, II and III/I, II, dan III

Diagram above shows a cross-section of a dry cell.Which of the labelled parts are function as positive and negative terminal?

Rajah diatas menunjukkan satu keratan rentas sel kering. Antara bahagian berlabel yang berikut, manakah berfungsi sebagai terminal positif dan negatif?

• Positive terminal/Terminal positif: S

  Negative terminal/Terminal negatif: V

• Positive terminal/Terminal positif: U

  Negative terminal/Terminal negatif: T

• Positive terminal/Terminal positif: V

  Negative terminal/Terminal negatif: U

• Positive terminal/Terminal positif: S

  Negative terminal/Terminal negatif: T

Name the battery above.....

Namakan bateri diatas.....

• Argentum oxide battery

  Bateri argentum oksida

• Nickel Cadmium battery

  Nikel Kadmium bateri

• Alkaline battery

  Bateri alkali

• Lead acid accumulator

  Akumulator asid plumbum

The diagram above shows the Nickel Cadmium battery. What is the use of bateri?

Rajah diatas menunjukkan bateri Nikel Kadmium .Apakah kegunaan beteri tersebut?

• As a radio battery

  Sebagai bateri radio

• As a vehicle battery

  Sebagai bateri kenderaan

• As a watch battery

  Sebagai bateri jam

• As a mobile phone battery

  Sebagai bateri telefon mudah alih