Question

Which one of the following can be purified by sublimation ?

• A. $F_2$
• B. $Cl_2$
• C. $Br_2$
• D. $I_2$

Answer 1

Answer: (D)

$I_2$

Answer 2

Out of different halogens, only iodine (r) on heating, directly coverts into $I_2(g)$. ${ I_2 (s) <=>[\Delta] I_2(g)}$ Thus, iodine can be purified by sublimation