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General Science

General Science
Bromine is a

Red Liquid
Highly Inflammable Gas
Colourless Gas
Black Solid

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General Science
How many colours the sunlight spectrum has?

Five
Seven
Three
Four

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General Science
The percentage of oxygen present in air is approximately-

0.21
0.4
0.44
0.23

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General Science
Which of the following is not an isotope of hydrogen?

Yttrium
Deuterium
None of the listed here
Protium

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General Science
When an iron nail gets rusted, iron oxide is formed

Without any change in the weight of the nail
Without any change in colour or weight of the nail
With increase in the weight of the nail
With decrease in the weight of the nail

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

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

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