Method of formation of solution is given in column I. Match it with the type of solution given in column II.
No
Column I
Column II
(i)
Sulphur vapours passed through cold water
(a)
Normal electrolyte solution
(ii)
Soap mixed with water above critical micelle concentracion
(b)
Molecular colloids
(iii)
White of egg whipped with water
(c)
Associated colloid
(iv)
Soap mixed with water below critical micelle concentracion
(d)
Macromolecular colloids
Method of formation of solution is given in column I. Match it with the type of solution given in column II.
| No | Column I | Column II | |
| (i) |
Sulphur vapours passed through cold water |
(a) |
Normal electrolyte solution |
| (ii) |
Soap mixed with water above critical micelle concentracion |
(b) |
Molecular colloids |
| (iii) |
White of egg whipped with water |
(c) |
Associated colloid |
| (iv) |
Soap mixed with water below critical micelle concentracion |
(d) |
Macromolecular colloids |
(i)→(b)
Multimolecular colloids are those where the solution is formed as a result of the aggregation of a large number of atoms or small molecules (having diameters of less than 1nm) of the dispersed media. The dispersed particles are held together by van der Waal forces. For Example: Sulphur sol can be prepared by passing vapours of sulphur through cold water.
(ii)→(c)
Associated colloids are those colloids that act like strong electrolytes at lower concentrations but at higher concentrations, they exhibit colloidal properties like micelles.
At a particular concentration, the molecules of dispersed phase align in such a way as to form micellar structures. This particular concentration is known as critical micelle concentration.
Thus, those colloids that form micelles are known as associated colloids.
So, when soaps are mixed with water, above critical micelle concentration, it leads to the formation of associated colloids.
(iii)→(d)
Macromolecular colloids are those which have very high molecular masses that form large molecules called macromolecules.
When these macromolecules are dispersed in a suitable dispersion medium, the resulting colloidal solutions are known as macromolecular colloids.
We know, proteins have high molecular mass and egg white contains proteins. So, when the egg white is whipped with water, it becomes an example of a macromolecular colloid.
(iv)→(a)
Soaps behave as strong electrolytes at lower concentrations. So, when soaps are mixed with water below the critical micelle concentration, they form a normal electrolytic solution.
Multimolecular colloids are those where the solution is formed as a result of the aggregation of a large number of atoms or small molecules (having diameters of less than 1nm) of the dispersed media. The dispersed particles are held together by van der Waal forces. For Example: Sulphur sol can be prepared by passing vapours of sulphur through cold water.
(ii)→(c)
Associated colloids are those colloids that act like strong electrolytes at lower concentrations but at higher concentrations, they exhibit colloidal properties like micelles.
At a particular concentration, the molecules of dispersed phase align in such a way as to form micellar structures. This particular concentration is known as critical micelle concentration.
Thus, those colloids that form micelles are known as associated colloids.
So, when soaps are mixed with water, above critical micelle concentration, it leads to the formation of associated colloids.
(iii)→(d)
Macromolecular colloids are those which have very high molecular masses that form large molecules called macromolecules.
When these macromolecules are dispersed in a suitable dispersion medium, the resulting colloidal solutions are known as macromolecular colloids.
We know, proteins have high molecular mass and egg white contains proteins. So, when the egg white is whipped with water, it becomes an example of a macromolecular colloid.
(iv)→(a)
Soaps behave as strong electrolytes at lower concentrations. So, when soaps are mixed with water below the critical micelle concentration, they form a normal electrolytic solution.
