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CHEMISTRY

Chemistry
Which of the following processes is used for the production of Biodiesel ?

Transcription
Transesterification
Transamination
Translation

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Chemistry
The chief source of naphthalene is

Diesel
Camphor
Charcoal
Coal-tar

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Chemistry
The gas that usually causes explosions in coal mines is

Hydrogen
Methane
Air
Carbon monoxide

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Chemistry
Submarines move under water. They have engines that run on

Petrol and oxygen
Batteries
Steam
Diesel

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Chemistry
Which is the highest quality of hard coal?

Lignite
Anthracite
Peat
Bituminous

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