Multiple choice

Ultra pure substances from a liquid can be obtained by the process of

  1. Liquification

  2. Sedimentation

  3. Crystallization

  4. Centrifugation

  5. Magnetic separation

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In this process, pure sample of soluble solid is obtained from its solution by reducing the temperature. In this process liquid solution of a solid is heated and then filtered. Through this, unwanted impurities are removed and then, after cooling  the filtrate in a ice bath, crystals of pure solid are fomed. This process is based on three levels-heating, filtering and cooling, so all are impurities are removed and we get ultra pure substance.