Question:
The slag with V-ratio $=\frac{\%CaO}{\%SiO_2}$ less than unity is classified as:
The slag with V-ratio $=\frac{\%CaO}{\%SiO_2}$ less than unity is classified as:
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Basicity ratio directly indicates slag chemistry and refining ability.
Updated On: Jun 29, 2026
- Basic
- Neutral
- Amphoteric
- Acidic
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Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Concept:
Slag classification depends on basicity index:
\[
V = \frac{\%CaO}{\%SiO_2}
\]
- If $V > 1$ → basic slag
- If $V \approx 1$ → neutral slag
- If $V < 1$ → acidic slag
Step 1: Given condition.
\[ V < 1 \] This means silica dominates over lime.
Step 2: Chemical interpretation.
High $SiO_2$ content makes slag acidic in nature. Final Answer: \[ \boxed{\text{Acidic slag}} \]
Step 1: Given condition.
\[ V < 1 \] This means silica dominates over lime.
Step 2: Chemical interpretation.
High $SiO_2$ content makes slag acidic in nature. Final Answer: \[ \boxed{\text{Acidic slag}} \]
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