Chemistry
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9 months agoContributor-Level 10
This is a Short Type Questions as classified in NCERT Exemplar
Ans: 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 stored or 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, i
New answer posted
9 months agoContributor-Level 10
This is a Short Type Questions as classified in NCERT Exemplar
Ans: Hinsberg's reagent is also known as benzenesulphonyl chloride (C6H5SO2Cl). When it reacts with primary and secondary amines, it produces sulphonamides. Allowing secondary and tertiary amines to react with Hinsberg's reagent allows them to be distinguished (benzenesulphonyl chloride C6H5SO2Cl). Secondary amines react with Hinsberg's reagent to form an alkali-insoluble product. N, N-diethylamine, for example, reacts with Hinsberg's reagent to form N, N-diethylbenzenesulphonamide, which is insoluble in alkalis. Tertiary amines, on the other hand, are unaffected by Hin
New answer posted
9 months agoContributor-Level 10
This is a Short Answer Type Questions as classified in NCERT Exemplar
A glycosidic linkage is a linkage that connects monosaccharides in polysaccharides. The covalent bond that joins two or more monosaccharides to produce a polysaccharide is known as this linkage.
New answer posted
9 months ago
Contributor-Level 10
This is a Short Type Questions as classified in NCERT Exemplar
Ans:
New answer posted
9 months agoContributor-Level 10
This is a multiple choice answer as classified in NCERT Exemplar
(a, d) Tranquilizers are neurologically active drugs. Veronal and luminal are derivatives of barbituric acid used as tranquilizers.
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9 months agoContributor-Level 10
This is a Short Answer Type Questions as classified in NCERT Exemplar
The sugar moiety of a nucleoside is linked to a phosphoric acid unit, ideally at the 5? position, to form a nucleotide.
The structure is depicted in the diagram below.
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9 months agoContributor-Level 10
This is a multiple choice answer as classified in NCERT Exemplar
(a, d) Ranitidine and cimetidine are antihistamines which are used as ant-acids. These drug result in release of lesser amount of acid. Brompheniramine and terfenadine are antihistamines which act as antiallergic in drugs.
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9 months agoContributor-Level 10
This is a Short Type Questions as classified in NCERT Exemplar
Ans: The best reagents for the conversion of nitrile to primary amine are LiAlH4 and Sodium/Alcohol. By reduction, the nitriles can be converted into a corresponding primary amine.
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9 months agoContributor-Level 10
This is a multiple choice answer as classified in NCERT Exemplar
(b, d) Sodium Hydrogen carbonate and Magnism Hydroxide, both are mild alkalies, are used as ant-acids.
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9 months agoContributor-Level 10
This is a Short Type Questions as classified in NCERT Exemplar
Ans: When Benzyl amine is treated with nitrous acid, firstly BDC is formed which is unstable and decomposes to Benzyl alcohol.
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