Question

A solid precipitate is formed from the reaction of lead nitrate and sodium chromate. What would be the best method to separate this solid from the solution?

Answer 1

The correct answer is this one: "C. Filtration." For distillation and evaporation, it would leave the soluble salt behind as well. Filtration refers to the action or process of filtering something.
Here are the choices:
A. Distillation 
B. evaporation 
C. Filtration 
D. Sorting

Answer 2

Explanation:

A precipitate is an insoluble solid that does not dissolve in a chemical reaction or or mixture.

For example, $Pb(NO_{3})_{2} + Na_{2}CrO_{4} \rightarrow PbCrO_{4} + 2NaNO_{3}$

Therefore, the precipitate formed can be separated out by filtration method.

As this method will most suitably extract the precipitate and separate it from the remaining solution.