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General Science

General Science
Which of the following metals forms an amalgam with other metals?

Lead
Zinc
Mercury
Tin

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General Science
The property of a substance to absorb moisture from the air on exposure is called

Osmosis
Efflorescence
Deliquescence
Desiccation

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General Science
The two elements that are frequently used for making transistors are

Silicon and Germanium
Niobium and Columbium
Iridium and Tungsten
Boron and Aluminium

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General Science
Paper is manufactured by

Wood, sodium and bleaching powder
Wood and bleaching powder
Wood, calcium, hydrogen sulphide and resin.
Wood and resin

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General Science
Light year is a measurement of

Stellar distances
Speed of aeroplanes
Speed of rockets
Speed of light

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General Science
Potassium Permanganate is used for purifying drinking water, because

It is an oxidising agent.
None of the listed here
It is a sterilising agent.
It is a reducing agent

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