Question

Which one of the following can be purified by sublimation?

Options

• F₂

• Cl₂

• Br₂

• I₂

Answer 1

I₂

Explanation:

Direct conversion of the solid material into vapours occurs. Iodine is discovered in the solid-state during sublimation, whereas F₂, Cl₂, and Br₂ are found in the gaseous and liquid states, respectively. So, sublimation can be used to purify iodine.