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) $FeO + SiO_{2} \rightarrow FeSiO_{3}$

(ii) $SiO_{2} + MgO \rightarrow MgSiO_{3}$

• A. (i) $SiO_{2}$- Acidic flux (ii) MgO – Basic flux
• B. (i) $SiO_{2}$- Basic flux (ii) MgO – Acidic flux
• C. (i) $SiO_{2}$- Basic flux (ii) MgO – Basic flux
• D. (i) $SiO_{2}$- Acidic flux (ii) MgO – Acidic flux

Answer 1

Answer: (A)

(i) $SiO_{2}$- Acidic flux (ii) MgO – Basic flux

Answer 2

(i) $\underset{\begin{aligned} & Basic \\ & impurity \end{aligned}}{FeO} + \underset{\begin{aligned} & Acidic \\ & flux \end{aligned}}{SiO_{2}}\overset{\quad\quad}{\rightarrow}\underset{Slag}{FeSiO_{3}}$

(ii) $\underset{\begin{aligned} & Acidic \\ & impurity \end{aligned}}{SiO_{2}} + \underset{\begin{aligned} & Basic \\ & flux \end{aligned}}{MgO}\overset{\quad\quad}{\rightarrow}\underset{Slag}{MgSiO_{3}}$