Which of the following statements is not correct for lyophilic sols?
- AThey do not require electrolytes for stability
- BThey show reversibility
- CTheir viscosity is almost similar to the viscosity of the dispersion medium
- DTheir surface tension is usually lower than that of the dispersion medium
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Similar Questions
Among the following methods:
$(i)$ Addition of an electrolyte
$(ii)$ Electrophoresis
$(iii)$ Addition of a protective colloid
$(iv)$ Addition of an oppositely charged sol
the coagulation of a lyophobic sol can be carried out by:
$(i)$ Addition of an electrolyte
$(ii)$ Electrophoresis
$(iii)$ Addition of a protective colloid
$(iv)$ Addition of an oppositely charged sol
the coagulation of a lyophobic sol can be carried out by:
MediumKVPY 2021
View SolutionEqual volumes of two $AgI$ sols are mixed together. The first sol is obtained by adding $AgNO_3$ to a slight excess of $KI$,and the second sol is obtained by adding $KI$ to a slight excess of $AgNO_3$. What happens when they are mixed?
Medium
View Solution$A$ sol of $AgI$ is prepared by mixing equal volumes of $0.1 \ M \ AgNO_{3}$ and $0.2 \ M \ KI$. Which of the following statements is correct?
Gelatin is mostly used in making ice cream in order to
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View SolutionWhy is gelatin used in the preparation of ice cream?
Easy
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