Which of the following metals is commonly used as a starting material in the van Arkel method for the purification of titanium and zirconium?
Titanium tetrachloride
Zirconium tetrachloride
Hafnium tetrachloride
Iodine pentachloride
In the van Arkel method for the purification of titanium and zirconium, titanium tetrachloride (TiCl4) is commonly used as the starting material.
Hence option 1 is correct.