- Which one of the following varieties of coal has the highest amount of carbon in it?

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Submitted by examrobotsa on

Q: 15 (CDS-I/2002)
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Which one of the following varieties of coal has the highest amount of carbon in it?

question_subject: 

Geography

question_exam: 

CDS-I

stats: 

0,130,25,130,12,8,5

keywords: 

{'coal': [0, 1, 2, 0], 'lignite': [3, 0, 0, 0], 'carbon': [1, 0, 4, 5], 'peat': [2, 1, 2, 2], 'anthracite': [2, 1, 2, 1], 'bituminous': [1, 0, 2, 0], 'varieties': [0, 0, 0, 1], 'highest amount': [1, 0, 3, 4]}

The correct answer is option 1 - Anthracite.

Anthracite coal is the variety of coal that has the highest amount of carbon in it. It is considered the highest-grade coal due to its carbon content, which can range from 86% to 98%. This high carbon content makes Anthracite coal highly efficient and produces a high amount of heat when burned.

Option 2 - Bituminous coal, also known as soft coal, has a lower carbon content compared to Anthracite. It typically contains around 45% to 86% carbon.

Option 3 - Lignite is a lower-grade coal with a relatively low carbon content ranging from 25% to 35%.

Option 4 - Peat is the lowest-grade coal, with the lowest carbon content. It is partially decayed plant material and contains around 60% to 75% water and less than 60% carbon.

Therefore, among the given options, Anthracite coal contains the highest amount of carbon.