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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
Why does acetylation of –NH2 group of aniline reduce its activating effect?
Why is aniline soluble in aqueous HCl?
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
Match the compounds given in Column I with the items given in Column II.
| Column I | Column II | ||
| (i) | Benzene sulphonyl chloride | (a) | Zwitter ion |
| (ii) | Sulphanilic acid | (b) | Hinsberg reagent |
| (iii) | Alkyl diazonium salts | (c) | Dyes |
| (iv) | Aryl diazonium salts | (d) | Conversion to alcohols |
In order to distinguish between C2H5NHz and C6H5NHz, which of the following reagents is useful?
Which of the following is true characteristic feature of aniline?
Which of the following is the most stable diazonium salt?
Benzene diazonium chloride is a ______.
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.
Given below are two statements:
Statement I: Benzenediazonium salt is prepared by the reaction of aniline with nitrous acid at 273-278 K. It decomposes easily in the dry state.
Statement II: Insertion of iodine into the benzene ring is difficult and hence, iodobenzene is prepared through the reaction of benzenediazonium salt with KI.
In the light of the above statements, choose the most appropriate answer from the options given below:
