Pure Substances and Mixtures — CHEMISTRY STD 6 — Question

a. Sublimation – The change of a solid directly into its vapour state without passing through its liquid state is called sublimation.
b. Filtration – The process of separating the fine insoluble solid particles from a solid-liquid mixture through a filter is called filtration.
c. Centrifugation – Centrifugation is a method for separating the fine suspended solid particles from a solid-liquid mixture by rotating the mixture in a centrifuge.
d. Crystallization – Crystallization is the process of separating a pure solid in the form of its chrystals from its solution.
e. Distillation – Distillation is the process of separation of a liquid from its solution with a solid constituent by heating the liquid to its vapour form and then cooling the vapour to get back the pure liquid.