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A white precipitate of sn(OH)4 is peptized with dilute HCl.the Sol particles will carry a)positive charge b)negative charge c)sometimes positive and sometimes negative charge d)no charge?
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A white precipitate of sn(OH)4 is peptized with dilute HCl.the Sol par...
Precipitation of Sn(OH)4

When tin(IV) chloride (SnCl4) is mixed with sodium hydroxide (NaOH) solution, a white precipitate of tin(IV) hydroxide (Sn(OH)4) is formed. This precipitate is insoluble in water and exists as solid particles.

Peptization with Dilute HCl

To peptize the precipitate, dilute hydrochloric acid (HCl) is added. Peptization is the process of converting a precipitate into a colloidal suspension by breaking down the particles into smaller, dispersed particles called sol particles.

When dilute HCl is added to the white precipitate of Sn(OH)4, the following reaction occurs:

Sn(OH)4 + 2HCl → SnCl4 + 4H2O

The addition of HCl causes the precipitate to dissolve, forming tin(IV) chloride and water. As a result, the Sn(OH)4 particles are converted into tin(IV) chloride ions and hydroxide ions.

Charge on Sol Particles

The charge on the sol particles after peptization depends on the nature of the colloid and the pH of the medium. In the case of Sn(OH)4 peptized with dilute HCl, the sol particles will carry a positive charge.

The positive charge on the sol particles can be explained as follows:

1. Dissociation of HCl: Dilute HCl dissociates in water to form H+ ions and Cl- ions.

2. Formation of Tin(IV) Chloride Ions: The dissolved Sn(OH)4 reacts with the H+ ions from HCl to form tin(IV) chloride ions (SnCl4).

3. Formation of Hydroxide Ions: The hydroxide ions (OH-) from the dissociation of Sn(OH)4 combine with the excess H+ ions from HCl to form water.

As a result of these reactions, the sol particles become positively charged. The positive charge arises due to the presence of excess H+ ions surrounding the sol particles. This positive charge allows the sol particles to repel each other and remain dispersed in the medium, forming a colloidal suspension.

Conclusion

In conclusion, when a white precipitate of Sn(OH)4 is peptized with dilute HCl, the sol particles will carry a positive charge. The positive charge arises due to the presence of excess H+ ions, which allows the sol particles to remain dispersed in the medium.
Community Answer
A white precipitate of sn(OH)4 is peptized with dilute HCl.the Sol par...
Option a..positive charge
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Read the passage given below and answer the following questions:Some colloids are stable by their nature, i.e., gels, alloys, and solid foams. Gelatin and jellies are two common examples of a gel. The solid and liquid phases in a gel are interspersed with both phases being continuous. In most systems, the major factor influencing the stability is the charge on the colloidal particles. If a particular ion is preferentially adsorbed on the surface of the particles, the particles in suspension will repel each other, thereby preventing the formation of aggregates that are larger than colloidal dimensions. The ion can be either positive or negative depending on the particular colloidal system, i.e., air bubbles accumulate negative ions, sulphur particles have a net negative charge in a sulphur sol, and the particles in a metal hydroxide sol are positively charged. Accumulation of charge on a surface is not an unusual phenomenon-dust is attracted to furniture surfaces by electrostatic forces. When salts are added to lyophobic colloidal systems the colloidal particles begin to form larger aggregates and a sediment forms as they settle. This phenomenon is called flocculation, and the suspension can be referred to as flocculated, or colloidally unstable. If the salt is removed, the suspension can usually be restored to its original state; this process is called deflocculation or peptization. The original and restored colloidal systems are called deflocculated, peptized, or stable sols. Why does a small amount of salt have such a dramatic effect on the stability of a lyophobic colloidal system? The answer lies in an understanding of the attractive and repulsive forces that exist between colloidal particles. Van der Waals forces are responsible for the attractions, while the repulsive forces are due to the surface charge on the particles. In a stable colloid, the repulsive forces are of greater magnitude than the attractive forces. The magnitude of the electrical repulsion is diminished by addition of ionized salt, which allows the dispersed particles to aggregate and flocculate. River deltas provide an example of this behaviour. A delta is formed at the mouth of a river because the colloidal clay particles are flocculated when the freshwater mixes with the salt water of the oceanQ. Colloidal solutions are stable due to

Read the passage given below and answer the following questions:Some colloids are stable by their nature, i.e., gels, alloys, and solid foams. Gelatin and jellies are two common examples of a gel. The solid and liquid phases in a gel are interspersed with both phases being continuous. In most systems, the major factor influencing the stability is the charge on the colloidal particles. If a particular ion is preferentially adsorbed on the surface of the particles, the particles in suspension will repel each other, thereby preventing the formation of aggregates that are larger than colloidal dimensions. The ion can be either positive or negative depending on the particular colloidal system, i.e., air bubbles accumulate negative ions, sulphur particles have a net negative charge in a sulphur sol, and the particles in a metal hydroxide sol are positively charged. Accumulation of charge on a surface is not an unusual phenomenon-dust is attracted to furniture surfaces by electrostatic forces. When salts are added to lyophobic colloidal systems the colloidal particles begin to form larger aggregates and a sediment forms as they settle. This phenomenon is called flocculation, and the suspension can be referred to as flocculated, or colloidally unstable. If the salt is removed, the suspension can usually be restored to its original state; this process is called deflocculation or peptization. The original and restored colloidal systems are called deflocculated, peptized, or stable sols. Why does a small amount of salt have such a dramatic effect on the stability of a lyophobic colloidal system? The answer lies in an understanding of the attractive and repulsive forces that exist between colloidal particles. Van der Waals forces are responsible for the attractions, while the repulsive forces are due to the surface charge on the particles. In a stable colloid, the repulsive forces are of greater magnitude than the attractive forces. The magnitude of the electrical repulsion is diminished by addition of ionized salt, which allows the dispersed particles to aggregate and flocculate. River deltas provide an example of this behaviour. A delta is formed at the mouth of a river because the colloidal clay particles are flocculated when the freshwater mixes with the salt water of the oceanQ. Settling down of colloidal particles to form a suspension is called

Read the passage given below and answer the following questions:Some colloids are stable by their nature, i.e., gels, alloys, and solid foams. Gelatin and jellies are two common examples of a gel. The solid and liquid phases in a gel are interspersed with both phases being continuous. In most systems, the major factor influencing the stability is the charge on the colloidal particles. If a particular ion is preferentially adsorbed on the surface of the particles, the particles in suspension will repel each other, thereby preventing the formation of aggregates that are larger than colloidal dimensions. The ion can be either positive or negative depending on the particular colloidal system, i.e., air bubbles accumulate negative ions, sulphur particles have a net negative charge in a sulphur sol, and the particles in a metal hydroxide sol are positively charged. Accumulation of charge on a surface is not an unusual phenomenon-dust is attracted to furniture surfaces by electrostatic forces. When salts are added to lyophobic colloidal systems the colloidal particles begin to form larger aggregates and a sediment forms as they settle. This phenomenon is called flocculation, and the suspension can be referred to as flocculated, or colloidally unstable. If the salt is removed, the suspension can usually be restored to its original state; this process is called deflocculation or peptization. The original and restored colloidal systems are called deflocculated, peptized, or stable sols. Why does a small amount of salt have such a dramatic effect on the stability of a lyophobic colloidal system? The answer lies in an understanding of the attractive and repulsive forces that exist between colloidal particles. Van der Waals forces are responsible for the attractions, while the repulsive forces are due to the surface charge on the particles. In a stable colloid, the repulsive forces are of greater magnitude than the attractive forces. The magnitude of the electrical repulsion is diminished by addition of ionized salt, which allows the dispersed particles to aggregate and flocculate. River deltas provide an example of this behaviour. A delta is formed at the mouth of a river because the colloidal clay particles are flocculated when the freshwater mixes with the salt water of the oceanQ. Gelatin is a ________________ colloidal system.

A white precipitate of sn(OH)4 is peptized with dilute HCl.the Sol particles will carry a)positive charge b)negative charge c)sometimes positive and sometimes negative charge d)no charge?
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A white precipitate of sn(OH)4 is peptized with dilute HCl.the Sol particles will carry a)positive charge b)negative charge c)sometimes positive and sometimes negative charge d)no charge? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about A white precipitate of sn(OH)4 is peptized with dilute HCl.the Sol particles will carry a)positive charge b)negative charge c)sometimes positive and sometimes negative charge d)no charge? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A white precipitate of sn(OH)4 is peptized with dilute HCl.the Sol particles will carry a)positive charge b)negative charge c)sometimes positive and sometimes negative charge d)no charge?.
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