Chemistry
Grade-8
Easy
Question
Complete the following analogy:
Lignite: Soft coal :: Anthracite:
- Household coal
- Hard coal
- Industrial coal
- Rough coal
Hint:
It is the opposite type of lignite.
The correct answer is: Hard coal
The correct option is b)Hard coal.
Anthracite (“coal-like”) is a hard, very low volatility, compact type of coal with a high gloss. It has the highest carbon content (between 92.1% and 98%), the lowest impurities, and the highest calorific value of all coal types, including bituminous and lignite.
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