It is a process where a solid changes directly into a gas without passing through a liquid phase.

Term used to describe different forms of the same element in the same physical state.

It is a type of filtration method used to separate solids from liquids under reduced pressure.

It is the process of removing impurities from a material, mixture, or solution to isolate the desired product in a more refined or pure form.

It is a technique used to purify a solid by dissolving it in a solvent and then allowing it to slowly re-form as pure crystals.

it is known as long range orderly arrangement of constituents.

This drying agent is suitable for drying organic bases.

The aqueous phase is water-based  and the organic phase is an organic ________.

It is formed when the dead and decayed organic matter is buried in the earth for millions of years by volcanic eruptions and earthquakes.

A purification technique used to separate liquids based on differences in their boiling points.