Question

During the formation of the slag by the reaction of flux and impurities which of the following is an example of acidic and basic flux?
(i) $FeO+Si{O}_2\to FeSi{O}_3$
(ii) $Si{O}_2+MgO\to MgSi{O}_3$

• A. (i) $Si{O}_2$ -Acidic flux
  (ii) $MgO$ -Basic flux
• B. (i) $Si{O}_2$ -Basic flux
  (ii) $MgO$ -Acidic flux
• C. (i) $Si{O}_2$ -Basic flux
  (ii) $MgO$ -Basic flux
• D. (i) $Si{O}_2$ -Acidic flux
  (ii) $MgO$ -Acidic flux

Answer 1

Answer: (A)

(i) $\underset{\underset{\text{impurity}}{\mathrm{basic}}}{\mathrm{FeO}}+\underset{\underset{\text{flux}}{\mathrm{acidic}}}{Si{O}_2}\to \underset{\text{slag}}{FeSi{O}_3}$
(ii) $\underset{\underset{\text{impurity}}{\mathrm{acidic}}}{Si{O}_2}+\underset{\underset{\text{flux}}{\mathrm{basic}}}{\mathrm{MgO}}\to \underset{\text{slag}}{MgSi{O}_3}$