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Chemistry

Chemistry
Which among the following is pure matter ?

Iron
Air
Carbon–dioxide
Brass

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Chemistry
For generation of biogas, the materials commonly used are

Forest residues
Animal wastes
Aquatic plants
Crop residues

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Chemistry
The gas involved in Bhopal incident was

Hydrogen sulphide
Methyl chloride
Nitrogen dioxide
Methyl isocyanide

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Chemistry
In sugar solution,

Sugar is solute, water is solvent
Both are solvents
Both are solutes
Sugar is solvent, water is solute

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Chemistry
When a nutrient like fertilizer is present in large quantities in a water bodies, plants grow and decay in large numbers because of suffocating of pond that does not leave enough oxygen needed to support life. This type of pollution is called

Smog
None of these
Green house effect
Eutrophication

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Chemistry
The most reactive among the halogens is

Fluorine
Bromine
Iodine
Chlorine

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MORE MCQ ON Chemistry

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