Sulphur removal by heating of pyrite ore in presence of air is called its ____________________?
A. Reduction
B. Roasting
C. Calcination
D. Smelting
A. Reduction
B. Roasting
C. Calcination
D. Smelting
A. Endothermic
B. Autocatalytic
C. Exothermic
D. Homogenous
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
A. Remove impurities/gangue
B. Enhance rate of reaction
C. Accelerate reduction of ore
D. Separate slag from metal
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
A. Is prone to thermal decomposition
B. Has high water solubility and is unstable
C. Is soluble in ammonium chloride and potassium chloride solution
D. All A , B. and C.
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.