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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. 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.

AAKASH INSTITUTE-SURFACE CHEMISTRY -Assignment Section - A (Objective type questions)
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  3. Milk can be preserved by adding a few drops of

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  5. Which statement is incorrect ?

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  6. The potential differnce between the fixed particles layer and the diff...

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  7. When dilute aqueous solution of AgNO3 (excess) is added to KI solution...

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  8. In the preparation of AgI sol, the excess fo AgNO(3) is added to potas...

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  10. During purification of colloidal sol by ultracentrifugation which of t...

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  11. A positive colloid will be formed when

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  12. Which of the following has the highest and lowest cogulating power? (A...

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  13. Most effective coagulant for a colloidal solution of arsenic sulphide ...

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  14. Flocculation value is expressed in terms of

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  15. Colloidal particles in soap sol carry

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  16. Which of the following metal sols. cannot be prepared by Bredig’s arc ...

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  17. When SO(2) is bubbled into H(2)S gas, colloidal sol is formed. What ty...

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  18. The stabilization of a dispersed phase in a lyopobic colloid is due to

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

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  20. The example of homogeneous catalysis is

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