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MHT CET202014 Oct 2020Evening ShiftChemistryGeneral Principles and Processes of Isolation of MetalsActual

What is the approximate ratio of roasted ore, coke and lime stone respectively in the charge to be added into blast furnace for extraction of iron?

Options

  1. A5: 12: 3
  2. B12: 3: 5
  3. C12: 5: 3
  4. D5: 3: 12

Correct answer

C. 12: 5: 3

Step-by-step solution

"The ratio of roasted ore, coke and limestone fed into the blast furnace in the manufacture of iron is 12:5:3. This mixture is known as charge."

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