Which of the following sulphur compounds present in coal that can not be reduced by washing of coal, is not determined directly?
A. Pyritic sulphur
B. Organic sulphur
C. Sulphate sulphur
D. Total sulphur
Answer: Option B
A. Pyritic sulphur
B. Organic sulphur
C. Sulphate sulphur
D. Total sulphur
Answer: Option B
A. combustion
B. gravimetric
C. volumetric
D. both B and C
Temperature used in the determination of volatile matter of coal is . . . . . . . . °C.
A. 750
B. 850
C. 950
D. 1050
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