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The coagulating power of an effective io...

The coagulating power of an effective ion carrying the charge opposite to the sol particles has been illustrated by :-

A

Brownian movement

B

Gold no

C

Tyndall effect

D

Schulze hardy rule

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The correct Answer is:
D
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The coagulating power of ions, for a negative sol changes in the order

collodial particles in a sol can be coagulated by :

The coagulation of sol particles may be brought in by :

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. The areseneous sulphide sol has negative (-) charge. The maximum power to precipitate it is of :

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. Lyophilic sols are more stable than lyophobic sols because

The coagulation of the lyophobic sols can be carried out by

The coagulation of colloidal particles of the sol can be caused by

ALLEN-SURFACE CHEMISTRY -ASSERTION & REASO
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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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