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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

Helium
Krypton
Argon
Xenon

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General Science
Water is a good solvent of ionic salts because

It has a high dipole moment
It has no colour
It has a high boiling point
It has a high specific heat

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General Science
Monazite is an ore of

Thorium
Zirconium
Zinc
Iron

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

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

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General Science
'Bar' is the unit of

Heat
Current
Temperature
Atmospheric pressure

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General Science
According to Avogadro's Hypothesis, the smallest particle of an element or a compound, that can exist independently, is called:

An anion
A molecule
A cation
An atom

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