Question

if a crude solid is made of mainly one substance and has some impurities then it is purified by​

Answer 1

Answer:

Purification of solid organic compounds • Purification of organic compounds is important because, organic compound made in the laboratory contains impurities. The common methods for purification are crystallisation, sublimation, distillation, chromatography, etc......

Answer 2

Answer:

Recrystallization

Explanation:

For the purification of crude solid we can use the process of recrystallization. As we know solids are likely to be more soluble in hot liquids as compared in cold liquids. During recrystallization, an impure solid compound, here, crude solid is dissolved in a hot liquid until the solution gets saturated, and then the liquid is allowed to cool. The pure solid crystals of crude are left behind which are then filtered again. Hence, we get pure crude solid by this process.