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CHEMISTRY

Chemistry
Sea water can be purified by the process of

Filtration
Evaporation
Fractional distillation
Distillation

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Chemistry
A mixture of water and alcohol can be separated by

Decantation
Distillation
Filtration
Evaporation

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Chemistry
Which one is a naturally occuring noble gas

Potassium
Argon
Sodium
Boron

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Chemistry
Total number of naturally occurring elements

98
92
62
110

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Chemistry
The coloured discharge tubes for advertisement mainly contain

Helium
Argon
Xenon
Neon

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