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Chemistry

Chemistry
By-product obtained by soap industry is

Caustic potash
Glycerol
Caustic soda
Naphthalene

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Chemistry
A mixture of water and alcohol can be separated by

Distillation
Evaporation
Filtration
Decantation

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Chemistry
Which one of the following is used to restore the colour of old oilpaintings ?

Ozone
Hydrogen peroxide
Barium peroxide
Sodium peroxide

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Chemistry
Who first published the periodic table

Henry Moseley
Dmitri Mendeleev
John Dalton
Julius Lothar Meyer

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Chemistry
Which of the following is used to increase the anti-knocking property of petrol ?

Tetramethyl lead
Tetraethyl lead
Triethyl lead
Trimethyl lead

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Chemistry
The gas used in the manufacture of vanaspati from vegetable oil is

hydrogen
carbon dioxide
oxygen
nitrogen

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