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Chemistry

Chemistry
Petroleum is a mixture of

Elements
Hydrocarbons
Salts
Polymers

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Chemistry
The most abundant metal in the Earth’s crust is

Copper
Iron
Aluminium
Zinc

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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

None of these
Eutrophication
Smog
Green house effect

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Chemistry
The “King of Metals” is :

Gold
Aluminium
Silver
Iron

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Chemistry
Which one is the simplest aromatic hydrocarbon

Picric acid
Chloride
Benzene
Aspirin

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Chemistry
Most poisonous pollutant in water is

Zinc
Detergent
Phosphate
Arsenic

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MORE MCQ ON Chemistry

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