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Chemistry

Chemistry
The non-metal found in the liquid state is

Bromine
Nitrogen
Fluorine
Chlorine

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Chemistry
Iodine value is used to estimate

Hydroxyl groups in oil
Carboxylic groups in oil
Alkali content in oil
Unsaturation in oil

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Chemistry
What is the element that is in the highest percentage in the composition of the earth ?

Oxygen
Magnesium
Silicon
Iron

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Chemistry
The chief source for the production of nitrogeneous fertilizers is :

Nitrogen
Nitrogen dioxide
Nitric acid
Ammonia

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Chemistry
The major constituent of air is

carbon dioxide
nitrogen
oxygen
hydrogen

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Chemistry
The high reactivity of fluorine is due to

strong F - F bond
small size of fluorine atom
availability of d-orbitals
its high electro negativity

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