During dissolution of iron from iron ore in acid solution, the rate of dissolution is accelerated by the addition of little amount of . . . . . . . . which reduces ferric iron to ferrous state.
A. BaCl2
B. CaCl2
C. SnCl2
D. NaCl
Answer: Option C
Related Questions on Metallurgical Analysis
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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