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UPSC Prelims 1989 · World Geography · Countries, Rivers and Resources
The highest grade of coal, whose surface is shining and has the highest calorific value, is
- (a) Lignite
- (b) Peat
- (c) Bituminous
- (d) Anthracite
Show the answer and explanation
Answer: (d) Anthracite
Anthracite has the most carbon, a shiny surface and the highest heat value.
Why the others are wrong
(a) Lignite is low-grade.
(b) Peat is the first stage — lowest.
(c) Bituminous is common but below anthracite.
The trap
None.
🔒 Peat < lignite < bituminous < anthracite (J&K has small anthracite).
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