question_answer

Van-Arkel method of purification of metals involves converting the metals to a

A)  volatile stable compound                       

B)  non-volatile stable compound

C)  volatile unstable compound                     

D)  None of these

Correct Answer: A

Solution :

Ultra pure metals are being prepared by the Van Arkel method. Arkels method is uded to purify oxide titanium metal. It is heated with iodine to about 500 K to form volatile compound. The \[Ti{{l}_{4}}\]is reheated at 700 K, when it decomposes to give pure Ti.