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Chemistry

Chemistry
Soap is prepared by boiling caustic soda with

Glycerine
Alcohol
Fats
Kerosene oil

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Chemistry
In chemical terms, what are alums used for purifying water for drinking purposes ?

Hydrated chlorides
Double nitrate
Nitrates of aluminium
Double sulphates

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Chemistry
Acid rain is caused due to emission of which of the following in to the atmosphere ?

Carbon monoxide and nitrogen
Ozone and carbon dioxide
Oxides of nitrogen and sulphur
Carbon dioxide and carbon monoxide

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Chemistry
Glycol is added to aviation gasoline because it

Reduces evaporation of petrol
Prevents freezing of petrol
Increases efficiency of petrol
Reduces consumption of petrol

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Chemistry
Chloroform can be used as

Analgesic
Antimalarial
Antibiotic
Anaesthetic

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Chemistry
Which gas is used for converting vegetable oils into saturated fats ?

Cl2
SO2
H2
O2

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