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प्रश्न
Why is benzene diazonium chloride not stored and is used immediately after its preparation?
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उत्तर
The reaction of aniline with nitrous acid at 273 - 278 K produces benzene diazonium chloride. The reaction of sodium nitrite with hydrochloric acid produces nitrous acid in the reaction mixture. Diazotisation is the process of converting primary aromatic amines into diazonium salts. Because of its instability, the diazonium salt is generally not used immediately after preparation.
The crystalline solid benzene diazonium chloride is colorless.
It is easily soluble in water and stable at room temperature but it reacts with water when warmed.
In the dry state, it decomposes easily.
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संबंधित प्रश्न
Illustrate the following reaction giving suitable example in each case: Diazotisation
Write equations of the following reactions:
Acetylation of aniline
Arenium ion involved in the bromination of aniline is:
(i)
(ii)
(iii)
(iv)
Why does acetylation of –NH2 group of aniline reduce its activating effect?
Predict the product of reaction of aniline with bromine in non-polar solvent such as \[\ce{CS2}\].
How will you carry out the following conversions?
toluene `->` p-toluidine
How will you carry out the following conversions?
p-toluidine diazonium chloride `→` p-toluic acid
Predict the reagent or the product in the following reaction sequence.
Which of the following statement about primary amines is false?
In order to distinguish between C2H5NHz and C6H5NHz, which of the following reagents is useful?
Benzene diazonium chloride is a ______.
Aniline dissolved in dilute HCl is reacted with sodium nitrate at 0 °C. This solution was added dropwise to a solution containing equimolar mixture of aniline and phenol in dil. HCl. The structure of the major product is:
Identify A and B for the following reaction:
What are polymers?
How will the following be converted? (Give chemical equation)
Aniline to benzene diazonium chloride.
