Question

Name an element which leaves no residue on heating.

Answer 1

Sublimation:

1. Sublimation is the process through which a solid material passes through the liquid phase and becomes a gas when heated.

Iodine:

1. When heated, iodine leaves no trace.
2. When iodine is heated, it transforms into a sublime substance.
3. By utilising regulated heat and a specific quantity of air pressure, solid iodine may still be converted to liquid form.

Iodine is an element which leaves no residue on heating.