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Question
Which of the following grade of coal has the least carbon content?
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Solution
The correct option is C Peat
Coal is formed when organic material is buried under sediment and exposed to high temperature and pressure for millions of years. The formation of coal takes place in four stages: peat, lignite, bituminous and anthracite coal. Peat is a heterogeneous mixture of more or less decomposed plant material that is accumulated in water, in the absence of air (anaerobic conditions). Peat is the primitive form of coal. The carbon content is least in peat.
Coal is formed when organic material is buried under sediment and exposed to high temperature and pressure for millions of years. The formation of coal takes place in four stages: peat, lignite, bituminous and anthracite coal. Peat is a heterogeneous mixture of more or less decomposed plant material that is accumulated in water, in the absence of air (anaerobic conditions). Peat is the primitive form of coal. The carbon content is least in peat.
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