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CHEMISTRY

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

Translation
Transcription
Transesterification
Transamination

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Chemistry
The chief source of naphthalene is

Camphor
Charcoal
Diesel
Coal-tar

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Chemistry
The gas that usually causes explosions in coal mines is

Air
Carbon monoxide
Methane
Hydrogen

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

Batteries
Diesel
Steam
Petrol and oxygen

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Chemistry
Which is the highest quality of hard coal?

Bituminous
Anthracite
Lignite
Peat

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