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When benzene diazonium chloride reacts with phenol, it forms a dye. This reaction is called ______.
Concept: Diazonium Salts >> Chemical Reaction of Diazonium Salts - Reactions Involving Retention of Diazo Group
Among the following, which has the highest value of pKb?
Concept: Amines >> Chemical Reactions of Amines - Basic Character of Amines
Amides can be converted into amines by the reaction named ______.
Concept: Amines >> Preparation of Amines
Assertion (A): Bromination of benzoic acid, gives m-bromobenzoic acid.
Reason (R): Carboxyl group increases the electron density at the meta position.
Concept: Amines >> Chemical Reactions of Amines - Electrophilic Substitution
In the reaction \[\ce{C6H5NH2 + CHCl3 + 3KOH -> A + 3B + 3C}\] the product A is:
Concept: Amines >> Identification of Primary, Secondary and Tertiary Amines
Arrange the decreasing order of pKb values.
\[\ce{C6H5NH2, C6H5NHCH3, C6H5CH2NH2, CH3NH2, NH3}\]
Concept: Amines >> Chemical Reactions of Amines - Basic Character of Amines
Arrange the increasing order of solubility in water.
\[\ce{C2H5Cl, C2H5NH2, C2H5OH}\]
Concept: Classification of Amines
Arrange the decreasing boiling point.
\[\ce{CH3COOH, C2H5OH, CH3NH2, CH3OCH3}\]
Concept: Physical Properties of Amines
What are monosaccharides?
Concept: Biomolecules in the Cell > Carbohydrates >> Monosaccahrides
What are three types of RNA molecules which perform different functions?
Concept: Introduction of Nucleic Acids
After watching a programme on TV about the adverse effects of junk food and soft drinks on the health of school children, Sonali, a student of Class XII, discussed the issue with the school principal. Principal immediately instructed the canteen contractor to replace the fast food with the fibre and vitamins rich food like sprouts, salad, fruits etc. This decision was welcomed by the parents and the students.
After reading the above passage, answer the following questions:
(a) What value are expressed by Sonali and the Principal of the school?
(b) Give two examples of water-soluble vitamins.
Concept: Introduction of Vitamins
Write the structural difference between starch and cellulose.
Concept: Biomolecules in the Cell > Carbohydrates >> Polysaccharides
What type of linkage is present in nucleic acids?
Concept: Introduction of Nucleic Acids
Which one of the following is a polysaccharide:
Starch, Maltose, Fructose, Glucose
Concept: Biomolecules in the Cell > Carbohydrates >> Polysaccharides
Define the following terms as related to proteins :
Peptide linkage
Concept: Biomolecules in the Cell > Proteins >> Peptide
Define the following term as related to proteins:
Denaturation
Concept: Biomolecules in the Cell > Proteins >> Denaturation of Proteins
What are the products of hydrolysis of maltose?
Concept: Biomolecules in the Cell > Carbohydrates >> Oligosaccharides
What do you understand by the term glycosidic linkage?
Concept: Biomolecules in the Cell > Carbohydrates >> Disaccharides - Sucrose, Maltose and Lactose
Define the following terms:
Oligosaccharides
Concept: Biomolecules in the Cell > Carbohydrates >> Oligosaccharides
What products would be formed when a nucleotide from DNA containing thymine is hydrolysed?
Concept: Biomolecules in the Cell > Nucleic Acids >> Chemical Composition of Nucleic Acids
