Class 12ChemistryGeneral Principles and Processes of Isolation of ElementsMix Examples of General Principles and processes of Isolation of Elements
MediumWhat is the approximate ratio of roasted ore,coke and limestone respectively in the charge to be added into the blast furnace for the extraction of iron?
- A$5: 12: 3$
- B$12: 3: 5$
- C$12: 5: 3$
- D$5: 3: 12$
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Similar Questions
Match the items of List-$I$ with those of List-$II$ and choose the correct option given below.
List-$I$ List-$II$ $A$. Calcination $1$. Galena $B$. Roasting $2$. Magnetite $C$. Magnetic separation $3$. Pyrometallurgy $D$. Carbon reduction of metal oxide $4$. Malachite
| List-$I$ | List-$II$ |
| $A$. Calcination | $1$. Galena |
| $B$. Roasting | $2$. Magnetite |
| $C$. Magnetic separation | $3$. Pyrometallurgy |
| $D$. Carbon reduction of metal oxide | $4$. Malachite |
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