Question

Define soluble salts,
(A) soluble salts are the compounds which readily dissolve in water
(B) soluble salts are the compounds which do not readily dissolve in water
(C) soluble salts are the salts that are formed by mixing of two simple salts
(D) soluble salts are the salts containing a definite number of water molecules as water of crystallization.

Answer 1

The solubility of salts in aqueous solutions based on solubility rules for common ionic solids. Because solubility means not mixing two or more salts. The solubility product is an important factor that describes the solubility of salts.

Complete step by step solution:
Solubility is defined as a property of solute when it is dissolved in a solvent to form a solution. The solubility of salts depends on lattice enthalpy of salt and salvation enthalpy of ions.
The solubility of salts depends on temperature and it varies from the different salts.
The solubility of salts is not possible in non-polar solvents. Salt is said to be soluble salt when solvation enthalpy should be greater than its lattice enthalpy.
The salts are classified based on the solubility in the following table.

1	Category I	Soluble	Solubility >0.1M
2	Category II	Slightly soluble	0.01 M0.1 M
3	Category III	Sparingly soluble	Solubility <0.1 M

Hence, from the above classification, solubility salt is defined as compounds readily dissolved in water. Example NaCl

The correct answer is option A.

Note: In an aqueous solution, the formation of insoluble salts due to the combination of two ions which forms an insoluble solid is called precipitate. If two soluble combine to form one soluble and insoluble solid which is precipitated out.