Bauxite ore is generally contaminated with impurity of oxides of two elements $X$ and $Y$. Which of the…

Bauxite ore is generally contaminated with impurity of oxides of two elements $X$ and $Y$. Which of the following statement is correct?
  1. $\mathrm{X}$ is a non-metal and belongs to the third period while $Y$ is a metal and belongs to the fourth period.
  2. One of two oxides has three-dimensional polymeric structure.
  3. Both (a) and (b) are correct.
  4. None of the above.

Solution

Two oxides present in bauxite as an impurity are $\mathrm{SiO}_{2}$ and $\mathrm{Fe}_{2} \mathrm{O}_{3} .$ Si belongs to the third period and $\mathrm{Fe}$ to the fourth period. $\mathrm{SiO}_{2}$ has a three dimensional structure ^

Asked in: JEE-TOPICTESTS-CHEMISTRY

Practice more P-BLOCK ELEMENTS GROUP 13 & 14 questions on Aicharya