If the nominal voltage of a given battery is 1.2 V, what is the type cell of used?

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ALP CBT 2 Electrician Previous Paper: Held on 22 Jan 2019 Shift 2
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  1. Lithium ion
  2. Lead acid
  3. Nickel cadmium
  4. Zinc silver oxide

Answer (Detailed Solution Below)

Option 3 : Nickel cadmium
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Cell

Classification

Positive electrode (Anode)

Negaitive electrode (Cathode)

Electrolyte

Rated output voltage

Carbon-Zinc (Leclanche cell)

Primary

Zinc

MnO2 / C

Mixture of NH4Cl and ZnCl2

1.5 V

Carbon-Zinc (Zinc chloride cell)

Primary

Zinc

MnO2 / C

Zinc chloride

1.5 V

Alkaline-Manganese cell

Primary and Rechargeable

Zinc

Manganese dioxide

Aqueous solution of potassium hydroxide

1.5 V

Mercuric oxide cell

Primary

Zinc

Mercuric oxide

Aqueous solution of potassium hydroxide or sodium hydroxide

1.35 V

Silver oxide cell

Primary

Zinc

Ag2O

Aqueous solution of potassium hydroxide or sodium hydroxide

1.5 V

Nickel-cadmium

Rechargeable (Secondary)

Cadmium

Nickel hydroxide

Aqueous solution of potassium hydroxide

1.2 V

Lithium Manganese

Primary

Lithium

Iodine/metallic oxides, sulphides

Organic, inorganic water

3 V to 6 V

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