(i) haematite
(ii) calamine
(iii) iron pyrites
(iv) sphalerite
Correct Answers:
(i) haematite
(ii) calamine
Explanation: Haematite and Calamine are the calcined ores which gets reduced by carbon in the metallurgical process.
For the metallurgical process of which of the ores calcined ore can be reduced by carbon?
For the metallurgical process of which of the ores calcined ore can be reduced by carbon?