1.

Put in descending order of content of fixed carbon 1.Peat 2.Lignite 3.Bituminous Coal 4.Anthracite

A. 4, 2, 3, 1
B. 1, 2, 3, 4
C. 3, 4, 2, 1
D. 4, 3, 2, 1
Answer» E.


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