Insoluble salts can be prepared by?
A
titrating an alkali against an appropriate acid
B
reacting an acid with trioxocarbonate (IV) salt
C
directing combination of the elements which make up the salt
D
mixing two soluble compounds containing the metallic radical and the acidic radical
Verified Correct Answer: D.
Chemical Principles & Mechanism
An insoluble salt can be prepared by a precipitation method through a double decomposition reaction.
Two soluble metal salts react with each other to form one soluble salt and one insoluble salt .
Lead nitrate solution and sodium chloride solution react to produce solid lead chloride , leaving soluble sodium nitrate in solution.
The lead chloride can be recovered by filtration.
Source: WAEC / JAMB / NECO Classroom Archive (Record #4047)