Eschka mixture used in total sulphur determination in coal comprises of...

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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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