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Chemistry

Chemistry
Charcoal is used in water treatment as a/an

Absorbent
Coagulant
Adsorbent
Solvent

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Chemistry
Molality of pure water is

55.5
5.55
1.8
18

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Chemistry
Most poisonous pollutant in water is

Phosphate
Zinc
Arsenic
Detergent

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Chemistry
The most abundant inert gas in the atmosphere is

Helium
Neon
Krypton
Argon

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Chemistry
The number of water molecules present in a drop of water (volume 0.0018 ml) at room temperature is

6.023 x 1023
6.023 x 1019
4.84 x 1017
1.568 x 103

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Chemistry
The anode in a dry cell consists of

Zinc
Cadmium
Graphite
Copper

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