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CHEMISTRY

Chemistry
Sea water can be purified by the process of

Fractional distillation
Evaporation
Distillation
Filtration

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Chemistry
A mixture of water and alcohol can be separated by

Decantation
Evaporation
Filtration
Distillation

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Chemistry
Which one is a naturally occuring noble gas

Sodium
Boron
Argon
Potassium

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Chemistry
Total number of naturally occurring elements

98
92
110
62

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Chemistry
The coloured discharge tubes for advertisement mainly contain

Neon
Helium
Argon
Xenon

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