General Science - General Knowledge Questions and Answers

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Air is a/an:

Compound

Element

Electrolyte

Mixture

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Production of chlorofluorocarbons (CFC) gas which is proposed to be banned in India, is used in which of the following domestic products?

Television

Refrigerator

Tube light

Cooking gas

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Balloons are filled with

Nitrogen

Helium

Oxygen

Argon

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Which of the following does not contain a coinage metal?

Silver and Gold

Zinc and Gold

Copper and Silver

Copper and Gold

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Which metal pollute the air of a big city?

Copper

Chromium

Lead

Cadmium

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Bell metal is an alloy of

Nickel and Copper

Zinc and Copper

Brass and Nickel

Tin and Copper

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Water is a good solvent of ionic salts because:

It has a high specific heat

It has no colour

It has a high dipole moment

It has a high boiling point

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Which of the following is not an isotope of hydrogen?

Tritium

Deuterium

Protium

Yttrium

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The main constituents of pearls are

Calcium Oxide and Ammonium Chloride

Calcium Carbonate and Magnesium Carbonate

Aragonite and Conchiolin

Ammonium Sulphate and Sodium Carbonate