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General Science

General Science
The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is

Xenon
Krypton
Helium
Argon

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General Science
Glass is made of the mixture of:

Sand and silicates
Salt and quartz
Sand and salt
Quartz and mica

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

Television
Tube light
Cooking gas
Refrigerator

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General Science
The group of metals Fe, Co, Ni may best called as

Transition metals
Main group metals
Alkali metals
Rare metals

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General Science
Galvanised iron sheets have a coating of

Zinc
Lead
Chromium
Tin

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General Science
The filament of an electric bulb is made of

Tungsten
Iron
Graphite
Nichrome

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