Ncert Exercises & Solutions

Which method is used for refining Zr and Ti? Explain with equation.

NEETprep Answer:

Zr and Ti are refined by van Arkel method. It involves 2 steps

(a) Formation of iodide e.g., zirconium

Zr + 2 I_{2} \to {ZrI}_{4}

(b) Decomposition of iodide

{ZrI}_{4} \overset{1800 K}{\to} \underset{Pure}{Zr} + 2 I_{2}