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On adding few drops of dilutie HCl or Fe...

On adding few drops of dilutie `HCl` or `FeCl_(3)` to freshly precipitated ferric hydroxide a red coloured colloidal solution is obtained. The phenomenon is know as

A

Dialysis

B

Peptization

C

Ultrafiltration

D

Electrodispersion

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The correct Answer is:
B
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On adding few drops of dil Hcl or FeCl_3 to freshly precipitated ferric hydroxide , a red coloured clloidal solution is obtained . This phenomenon is known as :

In a colloidal state, the particle size of he dispersed phase ranges between 10^(3) to 10^(6) pm and the colloidal sol is of heterogeneous nature. Depending upon the ease with which these sols are formed, the colloidal sols are cassified as lyophilic and lyophobic. THe stability of a colloidal sol is due to the presence of charge on the sol particles and the neutralisation of the same is known as coagulation or precipitation. The coagulationg power of the active ions of he electrolytes can be compared with the help of Hardy-Schulze Law. The protecting power of the lyophilic sols can be compared with the help of gold number. Lesser the value of gold number, more will be the protecting power of the lyophilic sol. On adding feq drops of dilute HCl to freshly precipitated ferric hydroxide, a red coloured colloidal sol is obtained. The phenomenon is Known as:

What happens when freshly precipitated ferric hydroxide is treated with dilute solution of ferric chloride ?

When freshly precipitated Fe(OH)_(3) is shaken with aqueous solution of FeCl_(3) , a colloidal solution is formed. The process is known as :

ALLEN-SURFACE CHEMISTRY -ASSERTION & REASO
  1. On adding few drops of dilutie HCl or FeCl(3) to freshly precipitated ...

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  2. Assertion :- Langmuir adsorption is a single layer phenomenon. Reaso...

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  3. Assertion :- A sol of As(2)S(3) prepared by the action of H(2)S on As(...

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  4. Assertion(A): Physical adsorption of molecules on the surface requires...

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  5. Assertion :- Filtration of colloidal particles is not possible by filt...

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  6. Assertion :- A gas mixed with another gas forms a colloidal solution. ...

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  7. Assertion :- Lyophilic sol is more stable than lyophobic sol. Reaso...

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  8. Assertion :- Associated colloids are formed by aggregation of large no...

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  9. Assertion :- In case of chemical adsorption, (x)/(m) first increase th...

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  10. Assertion :- Physical adsorption forms multimolecular layer. Reason ...

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  11. Assertion :- The graphical representation of physical adsorption with ...

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  12. Assertion :- Zeolite is shape selective catalyst. Reason :- Size of ...

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  13. Assertion :- Lyophilic sol coagulate by adding other solvent. Reason...

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  14. Assertion :- Catalyst is more effective in powdered form. Reason :- ...

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  15. Assertion :- Amount of charge on hydrophobic sol is greater than hydro...

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  16. Assertion :- During physical adsorption multimolecular layers are form...

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  17. Assertion: A quious gold colloidal solution is red in colour. Reason...

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  18. Assertion: Alcohols are dehydrated to hydrocarbons in the presence of ...

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  19. Assertion(A): The micelle formed by sodiumm stearate in water has -COO...

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  20. Assertion: Reaction of SO(2) and H(2)S in the presence of Fe(2)O(3) ca...

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  21. Assertion: Fe^(3+) can be used for coagulation of As(2)S(3) sol. Rea...

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