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Mechanical Engineering
MEDIUM
ENGLISH
Mechanical Engineering
Carbonation of coal is the process of________________________?
A
pulverising coal in inert atmosphere
Option A
B
heating wood in a limited supply of air at temperatures below 300°C
Option B
strongly heating coal continuously for about 48 hours in the absence of air in a closed vessel
Correct answer
D
binding the pulverised coal into brick-ettes
Option D
Correct answer: C
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