Question
What is meant by coagulation of a colloidal solution? Name any method by which coagulation of lyophobic sols can be carried out.
✓
Answer
Coagulation is a process of aggregating together the colloidal particles so as to change them into large particles which ultimately settle as a precipitate. By electrophoresis, coagulation of lyophobic Sols can be carried out.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Give examples and suggest reasons for the following features of the transition metal chemistry:
A transition metal exhibits highest oxidation state in oxides and fluorides.
A transition metal exhibits highest oxidation state in oxides and fluorides.
Out of o-nitrophenol and p-nitrophenol, which is more volatile? Explain.
Explain the following with suitable examples:
Ferrimagnetism.
Ferrimagnetism.
Explain electrolysis of sulphuric acid.
Give reason for the following:
Ammonia acts as a ligand.
Ammonia acts as a ligand.
Write note on solubility of amine compounds. Explain which of the amine and alcohol compounds has higher solubility ? Why ?
$^{238}_{92}\text{U}$ Change to $^{206}_{92}\text{Pb}$ by successive radioactive decay. A sample of urenium ore was anlaysed and found to contain $1.0\ g$ of $^{238}\text{U}$ and $0.1\ g$ of $^{206}\text{Pb}$ had accumulated due to decay of $^{238}\text{U}$, find out the age of ore. (Half- life of $^{238}\text{U}$$= 4.5\times10^9$ years).
→Explain the following term with suitable examples:
Frenkel defect.
Frenkel defect.
A graph between ln k and $\frac{1}{\text{t}}$ for a reaction is given. Here $k$ is rate constant and $T$ is temperature in Kelvin.If $OA = a$ and $OB = b,$ answer the following:
→- What is the activation energy $(Ea)$ of the reaction$?$
- What is the frequency factor $(A)$ for the reaction$?$
Explain oxidation of aldehydes and ketones.