NTA Abhyas 2020
- Exam
- NTA Abhyas
- Year
- 2020
- Subject
- Chemistry
- Chapter
- General Principles and Processes of Isolation of Metals
NTA Abhyas 2020 · Chemistry · General Principles and Processes of Isolation of Metals
In the metallurgy of iron, when limestone is added to the blast...
In the metallurgy of iron, when limestone is added to the blast furnace, the calcium ion ends up in:-
Options
- ASlag
- BGangue
- CMetallic Ca
- D
Correct answer
A. Slag
Step-by-step solution
Lime stone acts as flux in this process.
\text{C}\text{a}\text{C}{\text{O}_{3}\mathop{→}_{}\text{C}\text{a}\text{O} + \text{C}{0}_{2}
\text{C}\text{a}\text{O} + \text{S}\text{i}{\text{O}_{2}\mathop{→}_{}\text{C}\text{a}\text{s}\text{i}{\text{O}_{3} ( \text{s}\text{l}\text{a}\text{g} )
\text{C}\text{a}\text{C}{\text{O}_{3}\mathop{→}_{}\text{C}\text{a}\text{O} + \text{C}{0}_{2}
\text{C}\text{a}\text{O} + \text{S}\text{i}{\text{O}_{2}\mathop{→}_{}\text{C}\text{a}\text{s}\text{i}{\text{O}_{3} ( \text{s}\text{l}\text{a}\text{g} )