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Chemistry

Chemistry
The 'solid waste' is also known as

Sedge
Sludge
Toxic waste
Scrubber

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Chemistry
Which among the following is pure matter ?

Carbon–dioxide
Air
Brass
Iron

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Chemistry
Molality of pure water is

18
1.8
5.55
55.5

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Chemistry
Which one is a soluble salt in H2O

CuS
CaCl2
PbCl2
Zn(OH)2

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Chemistry
Which one of the following vegetable oils is used in the manufacture of paints?

Sunflower oil
Palm oil
Linseed oil
Cottonseed oil

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Chemistry
In chemical terms, what are alums used for purifying water for drinking purposes ?

Nitrates of aluminium
Double nitrate
Double sulphates
Hydrated chlorides

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