Select Board & Class
please explain the mechanism of micelle formation with suitable examples.
Q.Why does a gas mixed with another gas not form a colloidal system?
Which of the following will have the highest coagulation power for As2S3 colloid?
Explain line ,"the interface is normall y a few molecules thick but its area depends on the size of the particle s of bulk phases"
Ne gets easily absorbed over charcoal than He. Why ?
A physical adsorption at low temperature may pass into chemisorption as the temperature is increased.
pls explain this line with examole
What does specific or highly specific in nature means ?
What is hydrophilic sol? Why are they stable?
what is free valency of catalyst
physisorption are not specific in nature and reversible in the nature but how pls... explain this
Why colloidal solution of PALLADIUM can absorb large volume of hydrogen gas ?
What is the diffference between activity and rate of reaction .means explain difference between positive catalyst and negative catalyst
In the leaching process of gold and silver, why is the presence of air (for O2) required?
why are lyophilic colloids stable and lyophobic unstable? Is it because the former is solvent loving and the latter is solvent hating? Explain.
why the extent of adsorption decreases with an increase in temperature in adsorption in solution phase
In case of preferential adsorption of ions when two or more ions are present in the dispersion medium ,preferential adsorption of the ion common to colloidal particleusually takes place?What ion common to colloidal particle means?
if x is the amount of adsorbate and m is the amount of adsorbent , which of the following relations is not related to adsorption process ?
a]x/m = p * T
b] x/m = f (p) at constant T
c] x/m = f (T ) at constant p
d] p =f (T) at constant ( x/m)
Why charge is present on colloidal particles?Also explain what is electrical double layer ?Explain electrical double layer in very very simple words.
explain the hardy schulze rule with a good example
Q. Can an adsorption be endothermic? Define clearly and illustrate with examples
What are the two factors that are responsible for the stability of lyophilic sols?
how is a sol different from an emulsion
why at higher substrate concentration the enzyme reactions are zero order while at very low concentration of substrate the enzyme catalysed reactions are first order??
Which of following ion can cause coaguation of protiens?
why chemisorptio increases with the increase of temperature and physisorption decrease with inc in temp
Why Lyophobic sols are irreversible ?
Please explain with the help of an example if possible .
what is electrical disintegration
Physisorption and Chemisorption , both are exothermic processes . Right ?
Can you suggest me a project in chemistry on how to reduce smoke from the environment? and procedure for making it easily
The process of adsorption is thermodynamically exothermic, which is favoured by lowtemperature. As temperature increases, the extent of adsorption decreases....how??
explain the cleansing action of soaps.
Copyright © 2021 Aakash EduTech Pvt. Ltd. All rights reserved.
E.g: 9876543210, 01112345678
We will give you a call shortly, Thank You
Office hours: 9:00 am to 9:00 pm IST (7 days a week)