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Science (English Medium) Class 12 - CBSE Important Questions for Chemistry

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Give one example each for fibrous protein and globular protein.

Appears in 2 question papers
Chapter: [10] Biomolecules
Concept: Introduction of Proteins

What is the difference between native protein and denatured protein?

Appears in 2 question papers
Chapter: [10] Biomolecules
Concept: Introduction of Proteins

Write the name of the vitamin responsible for the coagulation of blood.

Appears in 2 question papers
Chapter: [10] Biomolecules
Concept: Introduction of Vitamins

Define the following term :

Peptization

Appears in 2 question papers
Chapter: [10] Biomolecules
Concept: Biomolecules in the Cell > Proteins >> Peptide

Define the following term as related to proteins:

Primary structure

Appears in 2 question papers
Chapter: [10] Biomolecules
Concept: Biomolecules in the Cell > Proteins >> Classification of Amino Acids

Define the following term:

Invert sugar

Appears in 2 question papers
Chapter: [10] Biomolecules
Concept: Biomolecules in the Cell > Carbohydrates >> Oligosaccharides

What are the expected products of hydrolysis of lactose?

Appears in 2 question papers
Chapter: [10] Biomolecules
Concept: Classification of Carbohydrates

What are nucleic acids?

Appears in 2 question papers
Chapter: [10] Biomolecules
Concept: Introduction of Nucleic Acids

What is the difference between a glycosidic linkage and a peptide linkage? 

Appears in 2 question papers
Chapter: [10] Biomolecules
Concept: Introduction of Proteins

Differentiable between the following: 
Amylose and Amylopectin 

Appears in 2 question papers
Chapter: [10] Biomolecules
Concept: Biomolecules in the Cell > Carbohydrates >> Structures of Glucose

Answer the following question.
What is the basic structural difference between glucose and fructose?

Appears in 2 question papers
Chapter: [10] Biomolecules
Concept: Biomolecules in the Cell > Carbohydrates >> Structures of Glucose

Define the following term:

Oligosaccharides

Appears in 2 question papers
Chapter: [10] Biomolecules
Concept: Biomolecules in the Cell > Carbohydrates >> Oligosaccharides

Write the reaction involved when D-glucose is treated with the following reagent:

Br2 water

Appears in 2 question papers
Chapter: [10] Biomolecules
Concept: Biomolecules in the Cell > Carbohydrates >> Structures of Glucose

Write the reaction involved when D-glucose is treated with the following reagent:

(CH3CO)2O

Appears in 2 question papers
Chapter: [10] Biomolecules
Concept: Biomolecules in the Cell > Carbohydrates >> Structures of Glucose

Hydrolysis of sucrose is called ______.

Appears in 2 question papers
Chapter: [10] Biomolecules
Concept: Biomolecules in the Cell > Carbohydrates >> Disaccharides - Sucrose, Maltose and Lactose

What is the role of sulphur in the vulcanisation of rubber?

Appears in 2 question papers
Chapter: [15] Polymers
Concept: Types of Polymerisation Reactions - Rubber

Write the names and structures of the monomers of the following polymers: Buna-N

Appears in 2 question papers
Chapter: [15] Polymers
Concept: Introduction to Polymers >> Classification of Polymers Based on Mode of Polymerisation

Write the names and structures of the monomers of the following polymers: Polyvinyl chloride

Appears in 2 question papers
Chapter: [15] Polymers
Concept: Introduction to Polymers >> Classification of Polymers Based on Structure

Write names and chemical formulae of monomers used in preparing Buna-N.

Appears in 2 question papers
Chapter: [15] Polymers
Concept: Types of Polymerisation Reactions - Rubber

Write the structures of monomers used the following polymers: 
Nylon - 6, 6

Appears in 2 question papers
Chapter: [15] Polymers
Concept: Types of Polymerisation Reactions - Condensation Polymerisation Or Step Growth Polymerisation
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