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Chemistry

Chemistry
Aluminium can be purified by

Oxidation
Electrolysis
Ozonolysis
Distillation

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Chemistry
Which of the following is the main compound of voter ink?

Ammonium Chloride
Silver Chloride
Silver nitrate
Ammonium Nitrate

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Chemistry
Galena is a mineral of

Gold
Iron
Lead
Calcium

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

Pseudomonas putida
Bacillus subtilis
Escherichia coli
Saccharomyces cerevisiae

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Chemistry
The name of plastic polymer from which combs, toys, bowls etc., can be made, is

Metallic polysulphides
Polystyrene
Teflon
Polyurethane

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Chemistry
Which of the following is caused by the higher concentration of Nitrogen and Phosphorous ?

Hardness
Alkalinity
Acidity
Eutrophication

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MORE MCQ ON Chemistry

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