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Chemistry

Chemistry
Alcohol prepared by the distillation of wood is :

Glycerol
Propyl alcohol
Ethyl alcohol
Methyl alcohol

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Chemistry
L.P.G. is mostly liquefied

Methane
Butane
Hydrogen
Oxygen

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Chemistry
Silver nitrate solution is kept in brown bottles in laboratory because

Brown bottles react with it
Brown bottles do not react with it
It reacts with ordinary white bottles
Brown bottles stops the passage of light through it

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

Extrinsic colloid
Hydrophobic colloid
Hydrophilic colloid
Associated colloid

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Chemistry
Sour milk contains

Lactic acid
Tartaric acid
Acetic acid
Citric acid

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Chemistry
Which one of the following statement is correct ?Ozone is found in the earth's atmosphere mostly between

20 and 50 km
10 and 20 km
5 and 10 km
50 and 100 km

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