Question

(e) What do you observe when:
(1) Iodine crystals are heated in a test tube?​

Answer 1

Answer:

When Iodine crystals are heated, the van der waals are easily overcome and the molecule breaks into gas phase. They sublime and form a purple colored dense vapor.

HOPE IT HELPS (n_n)

Explanation:

Answer 2

Answer:

If Iodine crystals are heated in a test tube they turn into gaseous form.

Explanation:

When iodine is heated it gets converted in gaseous state directly without passing through the liquid state. This is called sublimation. Iodine sublimes because there are covalent bonds between its atoms. When the crystals are heated, the van der Waals are easily overcome and the molecules are converted in gaseous state.