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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

Peptization

B

Dialysis

C

Protective action

D

Dissolution

Text Solution

Verified by Experts

The correct Answer is:
A
The phenomenon of converting of fresh mass into colloidal state by the action of solute or solvent is known as peptization.
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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 :

ERRORLESS-SURFACE CHEMISTRY-NCERT BASED QUESTIONS (Colloids, Emulsion, Gel and their properties with Application)
  1. which one of the sols acts as protetive colloid ?

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  2. Blood is purified by :

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  3. On adding few drops of dilutie HCl or FeCl(3) to freshly precipitated ...

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  4. The density of gold is 19g//cm^3. If 1.9xx10^-4g of gold is dispersed ...

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  5. Colloidal solution can be purified by :

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  6. In dialysis, colloidal particles are separated from

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  7. Sulphur colloid is prepared by

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  8. Colloidal solutions of metals like Cu, Ag, Au and Pt are generally pre...

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  9. In Bredig's arc method some alkali is added because

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  10. Which of the follwing colloids are formed when hydrogen sulphide gas i...

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  11. Which one of the following does not involved coagulation ?

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  12. Peptizing agent is

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  13. The purification of the colloidal particles from crystalloid dimension...

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  14. Bredig's arc method cannot be used to prepare colloidal solution of wh...

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  15. Colloidal solution of gold cannot be prepared by

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  16. All colloidal dispersions have

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  17. Which of the following is most effective in coagulating a ferric hydro...

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  18. Tyndall effect will be observed in :

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  19. Movement of colloidal particles under the influence of electrostatic f...

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  20. Which of the following substance gives a positively charged sol?

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