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Chemistry

Chemistry
Molality of pure water is

18
5.55
1.8
55.5

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Chemistry
Iodine can be separated from a mixture of Iodine and Potassium Chloride by

Sedimentation
Distillation
Filtration
Sublimation

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Chemistry
________ gives hardness to stainless steel.

Zinc
Lead
Carbon
Tin

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Chemistry
Which of the following is the major constituent of LPG?

Ethane
Propane
Methane
Butane

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Chemistry
Vulcanized rubber contains sulphur

3-5%
10-15%
0.02
7-9%

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Chemistry
Which one of the following gases has the highest calorific value?

Indane gas
Coal gas
Natural gas
Water gas

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