Difficult
Which one of the following is not a surfactant?
- A$CH_3-(CH_2)_{15}-N^{+}(CH_3)_3Br^{-}$
- B$CH_3-(CH_2)_{14}-CH_2-NH_2$
- C$CH_3-(CH_2)_{16}-CH_2OSO_3^{-}Na^{+}$
- D$CH_3-(CH_2)_{14}-CH_2-COO^{-}Na^{+}$
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Comment on the statement that "colloid is not a substance but a state of substance".
Difficult
View SolutionWhich of the following is a $Gel$?
Medium
View SolutionThe correct statement$(s)$ related to colloids is(are):
$(A)$ The process of precipitating colloidal sol by an electrolyte is called peptization.
$(B)$ Colloidal solution freezes at a higher temperature than the true solution at the same concentration.
$(C)$ Surfactants form micelles above the critical micelle concentration $(CMC)$. $CMC$ depends on temperature.
$(D)$ Micelles are macromolecular colloids.
$(A)$ The process of precipitating colloidal sol by an electrolyte is called peptization.
$(B)$ Colloidal solution freezes at a higher temperature than the true solution at the same concentration.
$(C)$ Surfactants form micelles above the critical micelle concentration $(CMC)$. $CMC$ depends on temperature.
$(D)$ Micelles are macromolecular colloids.
What is the cause of the stability of lyophilic colloids?
Easy
View SolutionWhen a colloidal solution is observed under a microscope,we can see:
Medium
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