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CHEMISTRY

Chemistry
Which of the following type of coal has the lowest proportion of volatile matter ?

Lignite
Peat
Bituminous
Anthracite

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Chemistry
Petroleum is a mixture of

Hydrocarbons
Elements
Salts
Polymers

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Chemistry
Which of the following contains high content of lead?

Low octane fuel
High octane fuel
Cooking gas
Coal

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Chemistry
Piped Natural Gas (PNG) is used for

Anaesthesia
Mining
Welding
Cooking

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Chemistry
Petroleum consists of a mixture of

Carbohydrates
Carbonates
Hydrocarbons
Carbides

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