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Chemistry

Chemistry
Nitrogen is an essential constituent of all :

Proteins
Vitamins
Fats
Carbohydrates

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Chemistry
Laughing gas is

Nitric oxide
Nitrogen pentoxide
Nitrous oxide
Nitrogen trioxide

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Chemistry
Among the following the hardest metal is

Gold
Platinum
Iron
Tungsten

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Chemistry
The pH of lemon juice is expected to be

Equal to 7
Less than 7
More than 7
Nothing can be predicted

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Chemistry
Bauxite is used as raw material by which industry ?

Gold
Iron
Steel
Aluminium

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Chemistry
Gypsum is used for improvement of:

Alkaline soils
Podsols
Saline soils
Acidic soils

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MORE MCQ ON Chemistry

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