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Chemistry

Chemistry
The atmospheric gas that is mainly responsible for Green House effect :

Carbondioxide
Ozone
Oxygen
Nitrogen

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Chemistry
Which one of the following is commonly used for pulp bleaching in the paper industry?

Glucose isomerase
Mild sulphuric acid
Iodine and water
Hydrogen peroxide

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Chemistry
Forth floatation process to concentrate the minerals is applicable to

Haematite
Bauxite
Calamine
Chalcopyrites

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Chemistry
Drinking soda is

Oxidant
Alkaline
Neutral
Acidic

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Chemistry
The polymer obtained by the condensation of hexamethylene diamine and adipic acid is :

Tollen's
Terylene
Nylon 66
Bakelite

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Chemistry
Isobars are lines joining places having equal

Height above sea-level
Population
Rainfall
Pressure

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