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When FeC3 solution is added to NaOH a n...

When `FeC_3` solution is added to NaOH a negatively charged sol is obtained. It is due to the:

A

Presence of basic group

B

Preferential adsorption of OH ions

C

Self dissociation

D

Electron capture by sol particles

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The correct Answer is:
B
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Read the given passage and answer the question that follow: Colloidal particles always carry an electric charge which may be either positive or negative. For example, when AgNO_3 solution is added to KI solution, a negatively charged colloidal sol is obtained. The presence of equal and similar charges on colloidal particles provide stability to the colloidal sol and if, somehow, charge is removed. coagulation of sol occurs. Lyophobic sols are readily coagulated as compared to lyophilic sols. Why a negatively charged sol is obtained on adding AgNO_3 solution to Kl solution?

Read the given passage and answer the question that follow: Colloidal particles always carry an electric charge which may be either positive or negative. For example, when AgNO_3 solution is added to KI solution, a negatively charged colloidal sol is obtained. The presence of equal and similar charges on colloidal particles provide stability to the colloidal sol and if, somehow, charge is removed. coagulation of sol occurs. Lyophobic sols are readily coagulated as compared to lyophilic sols. What is the reason for the charge on sol particles ?

Read the given passage and answer the question that follow: Colloidal particles always carry an electric charge which may be either positive or negative. For example, when AgNO_3 solution is added to KI solution, a negatively charged colloidal sol is obtained. The presence of equal and similar charges on colloidal particles provide stability to the colloidal sol and if, somehow, charge is removed. coagulation of sol occurs. Lyophobic sols are readily coagulated as compared to lyophilic sols. What is the reason for the charge on sol particles ?

Read the given passage and answer the question that follow: Colloidal particles always carry an electric charge which may be either positive or negative. For example, when AgNO_3 solution is added to KI solution, a negatively charged colloidal sol is obtained. The presence of equal and similar charges on colloidal particles provide stability to the colloidal sol and if, somehow, charge is removed. coagulation of sol occurs. Lyophobic sols are readily coagulated as compared to lyophilic sols. Name one method by which coagulation of lyophobic sol can be carried out.

Read the given passage and answer the question that follow: Colloidal particles always carry an electric charge which may be either positive or negative. For example, when AgNO_3 solution is added to KI solution, a negatively charged colloidal sol is obtained. The presence of equal and similar charges on colloidal particles provide stability to the colloidal sol and if, somehow, charge is removed. coagulation of sol occurs. Lyophobic sols are readily coagulated as compared to lyophilic sols. Name one method by which coagulation of lyophobic sol can be carried out.

NARAYNA-SURFACE CHEMISTRY -EXERCISE -2 (C.W. ) COLLOIDS
  1. Which of the following is not a colloid?

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  2. Which of the following is a homogeneous system ?

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  3. When FeC3 solution is added to NaOH a negatively charged sol is obtai...

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  4. The colloidal solutions of gold prepared by different methods have dif...

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  5. Which of the following are macromolecular colloids ?

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  6. Which one of the following is not a property oif Hydro sols ?

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  7. the minimum amount of an electrolyrte required to cause coagulation of...

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  8. Solutions of soaps and detergents exhibit colloidal properties at

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  9. When a beam of light is passed through collidal solution,

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  10. Which of the following ielectrolytes is least effective in causing flo...

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  11. Which of the following is with highest and lowest flocculation value a...

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  12. Isoelectric point refers to the [H^(+)] at which the collodial particl...

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  13. Detergent action of synthesis detergents is due to their.

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  14. Match the following {:("Column -I","Column-II"),((A)"Occlusion",(P )...

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  15. Match the following {:("List-I", "List-II"),((A) "physical adsorpti...

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  16. Match the following {:("List-I", "List-II"),((A)"Ammonia preparatio...

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  17. Match the following {:("List-I", "List-II"),((A) "blood",(1)"liqui...

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  18. Match the List -I with List -II and select the correct answer using th...

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  19. Match the List -I ( Colloidal dispersion ) with List -II ( Nature of t...

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  20. Column - I and Column - II contains four emtries each. Entries of Colu...

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