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7 months agoContributor-Level 10
This is a Short Answer Type Questions as classified in NCERT Exemplar
Monosaccharides contain carbonyl groups. As a result, they fall under the aldose or ketose categories. When an aldehyde group is present, the monosaccharides are known as aldose, and when a ketone group is present, the monosaccharides are known as ketose. Fructose is classified as ketohexose because it has six carbons and a keto group in its chemical formula (C6H12O6)
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7 months agoContributor-Level 10
This is a Short Type Questions as classified in NCERT Exemplar
Ans: The azo products have an extended conjugate system with both aromatic rings linked by the –N=N- bond. These compounds are frequently colored and used as dyes. Benzene diazonium chloride reacts with phenol to form p-hydroxy azobenzene by coupling the phenol molecule in its para position with the diazonium salt. This is referred to as a coupling reaction.
New answer posted
7 months agoContributor-Level 10
This is a Short Type Questions as classified in NCERT Exemplar
Ans: Amides are the byproducts of the acylation reaction. The reaction is carried out in the presence of a stronger base than the amine, such as pyridine, which removes the formed HCl and shifts the equilibrium to the right.
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7 months agoContributor-Level 10
This is a Short Answer Type Questions as classified in NCERT Exemplar
Bromine water (Br2) converts glucose to gluconic acid, which is then transformed to saccharic acid by concentrated nitric acid (HNO3).
The conversions are displayed in the table below.
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7 months agoContributor-Level 10
This is a Short Type Questions as classified in NCERT Exemplar
Ans: As the electronegativity of oxygen is more than the electronegativity of a nitrogen atom, the O−H bond is more polar than the N−H bond, therefore MeOH is stronger acid than MeNH2 or MeNH2 is stronger base than MeOH.
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7 months agoContributor-Level 10
This is a multiple choice answer as classified in NCERT Exemplar
(a, d) Sodium salts of sulphonated long chain alcohol and sodium salts of sulphonated long chain hydrocarbons are anionic detergents e.g., Sodium laurylsulphate CH3 (CH2)10CH2OSO3– Na+ and sodium dodecylbenzene sulphonate.
New answer posted
7 months agoContributor-Level 10
This is a Short Type Questions as classified in NCERT Exemplar
Ans: As −NH2 is a strong activating group, the aniline will readily undergo electrophilic substitution reaction, and it is difficult to cease reaction at the mono substitution stage.
Therefore, the activating group −NH2 is protected by an acetylation process.
The acetylated complex formed utilizes the lone pair of nitrogen and are less available for donation, this helps to carry out the nitration reaction easily.
New answer posted
7 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
7 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
7 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.
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