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Chemistry

Chemistry
Which among the following elements is found in maximum percentage in the human body ?

Oxyzen
Hydrogen
Carbon
Nitrozen

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Chemistry
Nitrification is the biological process of converting

N2 into nitrate
Ammonia into nitrite
N2into nitrite
Ammonia into N2

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Chemistry
In which of the following substances all carbon atoms are quaternary in nature ?

Teflon
Napthalene
Graphite
Diamond

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Chemistry
Synthetic detergents are prepared from

Hydrocarbons of petroleum
Potassium salts of higher fatty-acids
Glycerides
Sodium salts of higher fattyacids

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Chemistry
The antiseptic compound present in dettol is

Biothional
Iodine
Cresol
Enloroxylenol

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Chemistry
Which of the following is a metallic ore ?

Quartz
Feldspar
Galena
Mica

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