6.7 Write down the reactions taking place in different zones in the blast furnace during the extraction of iron.
At 500-800K
limestone also decomposes to calcium oxide which reverses silicate impurity of the ore as slag
At 900-1500K
CBSE Date Sheet 2025 (Out) Live: Class 10, 12 board exam time table at cbse.gov.in; syllabus, sample papers
CBSE Class 12 board exam date sheet 2025 out; exams from February 15 to April 4
When will CBSE Board exam 2025 date sheet be released for Class 10, 12?
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