Question

When \[NaCl\] solution is added to \[Fe{\left( {OH} \right)_3}\] colloidal solution then-
(a) \[\left[ {Fe{{\left( {OH} \right)}_3}} \right]F{e^{3 + }}\] Is formed
(b) \[\left[ {Fe{{\left( {OH} \right)}_3}} \right]C{l^ - }\] Is formed
(c) \[Fe{\left( {OH} \right)_3}\]Is coagulated
(d) \[\left[ {Fe{{\left( {OH} \right)}_3}} \right]N{a^ + }\]Is formed

Answer 1

Hint: We know that Colloidal solutions, or colloidal suspensions, are only a blend in which the substances are consistently suspended in a liquid. A colloid is a little and little material that is fanned out consistently all through another substance. Colloidal frameworks can happen in any of the three key conditions of issue gas, fluid or strong. Be that as it may, a colloidal arrangement ordinarily alludes to a fluid mixture. The essential distinctive component between a genuine arrangement and a colloidal solution is on a very basic level the elements of the constituent parts.

Complete answer:
At the point when sodium chloride solution is added to a \[Fe{\left( {OH} \right)_3}\] colloidal arrangement, coagulation happens. When salt is added to water, it separates into sodium ions and Chloride ions. As particles of \[Fe{\left( {OH} \right)_3}\]arrangement are decidedly charged, they get coagulated in presence of contrarily charged chloride particles.

Hence option c is correct.

Note:
Colloidal Solutions are separated into the accompanying kinds:
Froth: Foam is an answer of a gas in a fluid. The substance being scattered would be the gas, setting off the liquid to get foamy and frothy. An example of this would shave cream.
Emulsion: An emulsion is a blend of fluids. It is essentially when one fluid is reliably scattered all through another fluid. An example of this would be mayonnaise or milk. Study Emulsion here.
Sol: The third structure is known as a sol. A sol is a blend of a strong that is uniformly scattered all through a liquid. Tests of sols incorporate paint, blood and silver aqua sols.
Hydrocolloid: A hydrocolloid is a more nitty gritty type of a colloidal arrangement. In this arrangement, the liquid of an exact material is appropriately dispersed in water. Hydrocolloids are typically utilized in food items to impact surfaces, as in sauces or gelatins.
Reversible or Irreversible Colloids: The colloidal arrangements can be also named as being reversible or irreversible. In reversible colloids, the two materials can be easily separated again though, in irreversible ones, this is unimaginable.