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Aromatic diazonium salts are stable at _____ temperatures.
  • a)
    cold
  • b)
    room
  • c)
    warm
  • d)
    high
Correct answer is option 'A'. Can you explain this answer?
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Aromatic diazonium salts are stable at _____ temperatures.a)coldb)room...
Benzenediazonium salts are stable in cold environment, but readily react with water when the temperature increases even slightly.
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Aromatic diazonium salts are stable at _____ temperatures.a)coldb)room...
Stability of Aromatic Diazonium Salts
Aromatic diazonium salts are known for their unique properties and applications in organic chemistry. Their stability is significantly influenced by temperature.
Factors Affecting Stability
- Cold Temperatures: Aromatic diazonium salts are stable at low temperatures (typically below 5°C). At these temperatures, the kinetic energy of the molecules is reduced, which decreases the rate of decomposition. This stability is essential for their use in various reactions, such as azo coupling.
- Decomposition at Higher Temperatures: When exposed to warmer or high temperatures, diazonium salts can decompose readily. The increased thermal energy leads to the breakdown of the diazonium group, resulting in the formation of nitrogen gas and the corresponding aryl compounds.
- Reactivity in Reactions: Although stable at low temperatures, aromatic diazonium salts are highly reactive intermediates. They can participate in electrophilic aromatic substitution reactions, forming azo compounds when reacted with activated aromatic systems.
Applications
- Synthetic Chemistry: Their stability at cold temperatures allows for the safe storage and handling of diazonium salts before they are used in synthesis.
- Dye Manufacturing: Aromatic diazonium salts are crucial in the manufacture of azo dyes, which are widely used in textiles and other materials.
In summary, aromatic diazonium salts exhibit stability at cold temperatures, making them valuable in synthetic applications. Understanding their temperature-dependent stability is essential for chemists working with these compounds.
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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. Gelatin is a ________________ colloidal system.

Aromatic diazonium salts are stable at _____ temperatures.a)coldb)roomc)warmd)highCorrect answer is option 'A'. Can you explain this answer?
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