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SHARAM PUBLICATION-SURFACE CHEMISTRY-EXERCISE
- What are colloids ? How do they differ from crystalloids ?
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- What are lyophilic and lyophobic colloids ? Give one example of each.
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- What is the difference between colloidal solution, gel and emulsion ?
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- What happens when colloidal solution of Fe (OH)3 is mixed with that of...
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- What do you mean by hydrosol and alcosol ?
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- Why is a colloidal sol stable?
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- What happens to gold sol if gelatine is added to it ?
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- Why is gelatine added to ice cream ?
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- Why is a peptizing agent added to convert a precipitate into colloidal...
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- Why Cottrell's smoke precipitator is fitted at the mouth of chimney us...
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- How do the aquasols and solid aerosols differ ?
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- The adsorption of a gas on the surface of the solid is generally accom...
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- What causes Brownian movement in colloidal solution ?
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- What do you mean by a positive and negative catalyst ?
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- Why are powdered substances more effective adsorbent than their crysta...
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- What is the difference between multi molecular and macro molecular col...
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- Give an example where physisorption changes to chemisorption with rise...
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- How does it become possible to cause artificial rain by spraying silve...
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- The coagulation of 100 ml of a colloidal solution of gold is completel...
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- 50 ml of standard gold sol needs 0.05 mg of gelatine for its protecti...
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