Eschka mixture used in total sulphur determination in coal comprises of a mixture of . . . . . . . . in 2 : 1 ratio by weight.
A. calcined MgO and anhydrous Na2CO3
B. calcined CaO and anhydrous Na2CO3
C. calcined MgO and anhydrous MgCO3
D. calcined CaO and anhydrous MgCO3
Answer: Option A
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B. gravimetric
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Temperature used in the determination of volatile matter of coal is . . . . . . . . °C.
A. 750
B. 850
C. 950
D. 1050
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