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प्रश्न
______ is the best quality coal.
पर्याय
Magnetite
Anthracite
Bituminous
Peat
MCQ
रिकाम्या जागा भरा
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उत्तर
Anthracite is the best quality coal.
Explanation:
Anthracite is considered the highest quality hard coal since it has the highest carbon concentration, ranging from 80% to 95%, and has few impurities. Because of its high carbon density and low moisture content, it burns cleanly with a brief blue flame, emits little smoke, and provides the most heat energy (calorific value) of any type of coal.
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