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Chemistry

Chemistry
The chemical name of rat poison is

Zinc oxide
Zinc phosphide
Lead nitrate
Potassium cyanide

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Chemistry
Which of the following is used as non-stick coating for cooking utensils?

Styrofoam
Teflon
Perspex
Polystyrene

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Chemistry
The manufacturing of iron from iron ore involves the process of

Oxidation
Reduction
Fractional distillation
Electrolysis

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Chemistry
Quartz is a crystalline form of

Silica
Limestone
Alumina
Glass

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Chemistry
Which of the following is used to iodise common salt ?

Sodium iodide
Potassium iodide
Potassium iodate
Iodine

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Chemistry
Ultra purification of a metal is done by :

Smelting
Slugging
Leaching
Zone melting

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