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Chemistry

Chemistry
The hottest part of the gas flame is known as

dark zone
luminous zone
blue zone
non-luminous zone

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Chemistry
Main pollutants released from iron and steel industry are

CO2, NO2 and SO3
NO, SO3 and H2S
CO, CO2 and SO2
CO2, H2S and NO2

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Chemistry
Nucleus of an atom consists of.

Proton
Neutron
Electron, Proton and Neutron
Proton and Neutron

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Chemistry
The purest form of water in nature is

Sea water
River water
Lake water
Rain water

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Chemistry
A substance which readily forms colloidal solution in contact with water is called

Hydrophobic colloid
Associated colloid
Extrinsic colloid
Hydrophilic colloid

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Chemistry
Gypsum is used for improvement of:

Acidic soils
Podsols
Saline soils
Alkaline soils

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MORE MCQ ON Chemistry

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