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Chemistry

Chemistry
The liquid waste from kitchens and baths, of residences is known as :

Sullage
Refuse
Domestic sewage
Storm water

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Chemistry
Molality of pure water is

18
55.5
1.8
5.55

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Chemistry
Physico-chemical characteristics of water in water sources undergo changes due to

Aquatic macrophytes
Evapotranspiration
Effluents
Auatic fungi

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Chemistry
Which of the following is used in making smoke bombs?

Phosphorus
Hydrogen
Sulphur
Carbon

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Chemistry
In organic compounds, nitrogen is estimated by

Victor-Meyer's method
Liebig's method
Carius method
Dumas method

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Chemistry
Which of the following gases is present under pressure in soft drinks?

Nitrous oxide
Nitrogen
Carbon dioxide
Oxygen

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