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Chemistry

Chemistry
The inert gases are ____ in water

sparingly soluble
soluble
insoluble
None of these

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Chemistry
Water can be separated from alcohol water mixture by

Decantation
Sublimation
Distillation
Evaporation

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Chemistry
The new strain of bacteria produced by biotechnology in alcohol industry is

Pseudomonas putida
Escherichia coli
Saccharomyces cerevisiae
Bacillus subtilis

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Chemistry
The chemical name of 'Hypo' commonly used in photography is

Silver nitrate
Sodium nitrate
Silver iodide
Sodium thiosulphate

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Chemistry
Which type of radiations are absorbed by the upper layer of the atmosphere?

Ultraviolet
Radio-waves
Infrared
Visible

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Chemistry
Bone ash contains

Calcium sulphate
Calcium phosphate
Phosphoric sulphate
Calcium hypophosphate

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