Question

Name four substances that can be removed from a mixture of sand by sublimation.

CBSE Class IX Science SA 1 ( 2 marks)

Answer 1

Ans.

Sublimation can be defined as a transition i.e. a change of state of matter.

In sublimation, a solid state can at once be changed into the liquid state.

The four substances that can be removed from a mixture of sand are given below:

Iodine.

Ammonium chloride.

Camphor.

Naphthalene.

Answer 2

iodine, ammonium chloride.,camphor, naphthalene