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The vitamins which can be stored in our body are ______.
Concept: Classification of Vitamins
DNA fingerprinting is used to determine paternity of an individual. Which property of DNA helps in the procedure?
Concept: Structure of Nucleic Acids
What structural change will occur when a native protein is subjected to change in pH?
Concept: Denaturation of Proteins
When sucrose is hydrolysed the optical rotation values are measured using a polarimeter and are given in the following table:
| S. No. | Time (hours) | Specific Rotation |
| 1 | 0 | + 66.5° |
| 2 | ∞ | - 39.9° |
- Account for the two specific rotation values.
- What is the specific name given to sucrose based on the above observation?
- One of the products formed during the hydrolysis of sucrose is a glucose, that reacts with hydroxylamine to give compound A. Identify compound A.
Concept: Classification of Carbohydrates >> Disaccharides
Which of the following is a natural polymer ? Buna-S, Proteins, PVC
Concept: Types of Polymerisation Reactions - Addition Polymerisation or Chain Growth Polymerisation
Write the name of monomers used for getting the following polymers : Bakelite
Concept: Classification of Polymers> Based on Structure
Based on molecular forces, what type of polymer is neoprene?
Concept: Some Important Polymers
Which of the following is a fibre? Nylon, neoprene, PVC
Concept: Types of Polymerisation Reactions - Condensation Polymerisation Or Step Growth Polymerisation
Write the names and structures of the monomers of the following polymers: Buna-S
Concept: Classification of Polymers> Based on Mode of Polymerisation
Write the names and structures of the monomers of the following polymers: Dacron
Concept: Classification of Polymers> Based on Mode of Polymerisation
Write the names and structures of the monomers of the following polymers:
(i) Terylene
(ii) Bakelite
(iii) Buna-S
Concept: Classification of Polymers> Based on Structure
Arrange the following polymers in increasing order of their intermolecular forces:
Polyvinylchloride, Neoprene, Terylene
Concept: Classification of Polymers> Based on Intermolecular Forces
What is the significance of number of 6,6 in the polymer nylon-6,6?
Concept: Types of Polymerisation Reactions - Condensation Polymerisation Or Step Growth Polymerisation
Write a chemical reaction to show that the open structure of D-glucose contains the following :
Straight chain
Concept: Classification of Polymers> Based on Structure
What is the role of Sulphur in the vulcanization of rubber?
Concept: Types of Polymerisation Reactions - Rubber
Which one of the following is a food preservative?
Equanil, Morphine, Sodium benzoate
Concept: Chemicals in Food - Artificial Sweetening Agents and Food Preservatives
How do antiseptics differ from disinfectants? Give one example of each.
Concept: Compounds with Medicinal Properties >> Antimicrobials
Name a substance which can be used as an antiseptic as well as disinfectant.
Concept: Compounds with Medicinal Properties >> Antimicrobials
Why is use of aspartame limited to cold foods and drinks?
Concept: Chemicals in Food - Artificial Sweetening Agents and Food Preservatives
Name a sweetening agent used in the preparation of sweets for a diabetic patient.
Concept: Chemicals in Food - Artificial Sweetening Agents and Food Preservatives
