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Chemistry

Chemistry
By-product obtained by soap industry is

Naphthalene
Glycerol
Caustic potash
Caustic soda

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Chemistry
Epsom salt is used

In paper industry
As purgative
In making tooth paste
In softening water

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Chemistry
Which is the heaviest metal among the following?

Silver
Copper
Gold
Iron

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Chemistry
In vulcanisation process, rubber can be hardened by adding

Sulphur
Silicon
Alcohol
Nitrogen

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Chemistry
The mass of one Avogadro number of helium atom is

1.00 gram
4 x 6.02 x 1023 gram
4.00 gram
8.00 gram

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Chemistry
Which of the following acids serves as an electrolyte in a lead storage battery?

Sulphuric acid
Lactic acid
Hydrochloric acid
Nitric acid

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