Question

Common impurities present in bauxite are:

(i) $$\mathrm{CuO}$$

(ii) $$\mathrm{ZnO}$$

(iii) $$\mathrm{Fe}{\phantom{A}}_2\mathrm{O}{\phantom{A}}_3$$

(iv) $$\mathrm{SiO}{\phantom{A}}_2$$ 

Answer 1

(iii) $$\mathrm{Fe}{\phantom{A}}_2\mathrm{O}{\phantom{A}}_3$$

(iv) $$\mathrm{SiO}{\phantom{A}}_2$$ 

Explanation:

$$\mathrm{Fe}{\phantom{A}}_2\mathrm{O}{\phantom{A}}_3$$ and $$\mathrm{SiO}{\phantom{A}}_2$$ are the common impurities present in bauxite.