In the following question, a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices:
Assertion : Zirconium can be purified by van Arkel method .
Reason : ZrI4 is volatile and decomposes at 1800K.
Answer & explanation
Correct answer: option 1
Zirconium can be purified by van Arkel method which include formation of volatile ZrI4 which decomposes at 1800 K to Zr.
Zr + 2I2 → ZrI4
ZrI4 → Zr + 2I2