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Chemistry

Chemistry
Highest percentage of carbon is found in which form of coal?

Lignite
Bituminous
Peat
Anthracite

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Chemistry
The high reactivity of fluorine is due to

its high electro negativity
availability of d-orbitals
strong F - F bond
small size of fluorine atom

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Chemistry
Gobar gas mainly contains

Carbon dioxide
Hydrogen sulphide
Methane
Carbon monoxide

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Chemistry
The compound used in pricklyheat powder to prevent excessive sweating is

Boric acid
Carbonic acid
Sulphuric acid
Phosphoric acid

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Chemistry
Which of the following statements are correct about chloroform? a. Liquid fuel b. Anaesthetic in nature c. Produces phosgene d. Fire extinguisher

B, c
D, a
A, c
A, b

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Chemistry
The gas used for filling weather balloons is

Hydrogen
Helium
Nitrogen
Air

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MORE MCQ ON Chemistry

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