Question
Question: In Van Arkel method, if I2 is introduced at 1800 K over impure zirconium metal, the product will be:...
In Van Arkel method, if I2 is introduced at 1800 K over impure zirconium metal, the product will be:
A
Iodide of the metal
B
Pure metal
C
Impurities react with iodine
D
None of these
Answer
None of these
Explanation
Solution
Zr (impure) + 2I2 
ZrI4 ; ZrI4 
Zr (pure) + 2I2 and hence over 1800ºC practically no reaction can take place between Zr and I2.
Therefore, (4) option is correct.