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Chemistry

Chemistry
Saline soil contains

Hard rocks
High concentration of salt
Lot of moisture
None of these

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Chemistry
White phosphorus is generally kept under

Kerosene oil
Alcohol
Water
Glycerine

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

Nitrozen
Oxyzen
Hydrogen
Carbon

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Chemistry
Cement is formed by strongly heating a mixture of

Limestone and graphite
Clay and graphite
Limestone and clay
Chalk and graphite

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Chemistry
A fertile soil is likely to have a pH of

43989
9
14
3

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Chemistry
Which of the following is not an addition polymer

Polythene
Polystyrene
Nylon
PVC

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