Question

Match column I with column II and mark the correct option.
      Column I $\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,$ Column II
(p) Silver sol $\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,$ (i) Kala Azar
(q) Colloidal gold $\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,$ (ii) Stomach disorder
(r) Milk of magnesia $\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, $(iii) Eye lotion
(s) Colloidal antimony (iv) Intramuscular injection
A.$\left( p \right) - \left( {iv} \right),\left( q \right) - \left( {iii} \right),\left( r \right) - \left( {ii} \right),\left( s \right) - \left( i \right)$
B.$\left( p \right) - \left( {iv} \right),\left( q \right) - \left( i \right),\left( r \right) - \left( {iii} \right),\left( s \right) - \left( {ii} \right)$
C.$\left( p \right) - \left( {iii} \right),\left( q \right) - \left( {iv} \right),\left( r \right) - \left( {ii} \right),\left( s \right) - \left( i \right)$
D.$\left( p \right) - \left( i \right),\left( q \right) - \left( {ii} \right),\left( r \right) - \left( {iv} \right),\left( s \right) - \left( {iii} \right)$

Answer 1

Hint: We realize that the colloidal condition of matter is wherein the molecule sizes fluctuate from 1nm to 1000nm. In a colloidal framework, scattered phase alludes to the substance which is circulated in the scattering medium in nature of colloidal particles. The term scattering medium alludes to the medium wherein in the substance is scattered as colloidal particles.

Complete answer:
In colloidal systems, the size of the particles found in dispersed-phase varies from $1nm - 200nm$. Because of their particle size, they exhibit the phenomenon of Tyndall effect.
We have to know that a colloid is a heterogeneous system wherein one substance is (scattered stage) as fine particles in another substance are known as scattering medium.
Different sorts of colloids are-:
Multimolecular colloids: On disintegration, countless particles or smaller atoms of a substance total together to shape species consisting of size in the colloidal range $\left( {1 - 1000nm} \right)$. The species in this way are called multimolecular colloids.
Macromolecular colloids: Macromolecules in specific solvents result in solutions where the size of the macromolecules might be in the colloidal range. Such solutions are known as macromolecular colloids.
Related colloids (Micelles): There are a few substances which at low concentrations act as ordinary solid electrolytes, yet at higher concentration display colloidal conduct because of the arrangement of aggregates. The total particles in this way produced are called micelles. These are otherwise called related colloids.
Some of the applications of colloidal solutions are,
In eye lotion, silver sol is utilized.
In intramuscular injection, colloidal gold is utilized.
In stomach disorders, milk of magnesia is utilized.
To cure Kalaazar, colloidal antimony is utilized.

So, we can conclude that $\left( p \right) - \left( {iii} \right),\left( q \right) - \left( {iv} \right),\left( r \right) - \left( {ii} \right),\left( s \right) - \left( i \right)$ and Option (C) is correct.

Note:
We have to remember that the size of colloidal particles ranges in nanometers. We should not get confused between dispersed phase and continuous phase. We have to know the dispersed phase is the phase where the substance is dispersed and the phase through which the substance is dispersed is known as continuous phase.