A. heating coal in plentiful supply of air
B. burning coal in air to produce water and carbon (IV) oxide
C. heating coal in the absence of air
D. heating coal in limited supply of air
E. separating coal into various allotropes of carbon

Correct Answer:

Option C – burning coal in air to produce water and carbon (IV) oxide

SEE ALSO  The number of sulphur atoms in 3.20g of SO2(g) is [O = 16.0;S = 32.0; Avogadro constant = 6.02 X 10²³]

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