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Chemistry

Chemistry
Normal rainwater has a pH level of

6.3
8.3
3.2
5.6

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Chemistry
Bauxite is an alloy of which of the following metals ?

Silver
Iron
Tin
Aluminium

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Chemistry
Soap is prepared by boiling caustic soda with

Fats
Alcohol
Glycerine
Kerosene oil

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Chemistry
Bridgmanite is

Name of a music
Earth’s most abundant minera
Name of a game
A bridge on the river Thames

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Chemistry
Among the following, carbonate ore of Zinc is

Zincblende
Sphalerite
Calamine
Zincite

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Chemistry
The chief source of naphthalene is

Charcoal
Coal-tar
Camphor
Diesel

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