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General Science

General Science
Which of the following is used in pencils?

Silicon
Graphite
Phosphorous
Charcoal

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General Science
Light year is a measurement of

Speed of rockets
Speed of light
Stellar distances
Speed of aeroplanes

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General Science
Which of the following is a non metal that remains liquid at room temperature?

Bromine
Chlorine
Helium
Phosphorous

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General Science
Sodium metal is kept under

Kerosene
Petrol
Alcohol
Water

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General Science
Heavy water is

Tritium oxide
PH7
Rain water
Deuterium oxide

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General Science
In an atomic explosion, enormous energy is released which is due to

Conversion of mechanical energy into nuclear energy
Conversion of neutrons into protons
Conversion of chemical energy into heat energy
Conversion of mass into energy

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