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CHEMISTRY

Chemistry
Which colour is produce by Arsenic during flame test

Crimson
Green
Blue
Red

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Chemistry
Bleaching action of moist sulphur di-oxide is because of its

Acidic property
Basic property
Oxidising property
Reducing property

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Chemistry
Sulphur dioxide bleaches colouring matter by :

Reduction
Dehydration
Decomposition
Oxidation

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

Mild sulphuric acid
Glucose isomerase
Hydrogen peroxide
Iodine and water

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Chemistry
In upper layer of atmosphere ozone is formed by

The combination of oxygen molecules
Subjecting oxygen to high pressure
The action of ultraviolet rays on oxygen
The action of nitrogen on oxygen in atmosphere

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