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Chemistry

Chemistry
The coordination number of body centered atom in cubic structure is

6
4
8
10

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Chemistry
Synthetic detergents are prepared from

Glycerides
Sodium salts of higher fattyacids
Hydrocarbons of petroleum
Potassium salts of higher fatty-acids

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Chemistry
Which one of the following group of gases contributes to the 'Green House Effect'?

Carbon dioxide and Methane
Ammonia and Ozone
Carbon monoxide and Sulphur dioxide
Carbon tetraflouride and Nitrous oxide

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Chemistry
The monomers of dacron are

Decane and decanol
Ethylene glycol and terephthalic acid
Decanone and decanol
Ethylene glygol and phthalic acid

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Chemistry
Air is said to be saturated when :

It contains maximum content of water vapour
It blows over the barren land
Its thickness is maximum
Its pressure is minimum

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

Evapotranspiration
Effluents
Auatic fungi
Aquatic macrophytes

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