Which one of the following vitamins is essential for coagulation of blood?
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Chemistry GK · all questionsBiomolecules and Polymers
Biomolecules and Polymers
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Methyl propane is an isomer of
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Non-stick frying pans are coated with
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Match List I with List II.
| List-I (Item) | List-II (Toxic Substance) |
| a. CFL Lamp | 1. Nitrogen oxide |
| b. Automobile battery | 2. Phthalates |
| c. Polymer | 3. Lead |
| d. Diesel engine | 4. Mercury |
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. . . . . . . . polymer is used in making floor tiles.
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Chemical name of vitamin-A is
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Which one of the following acids is also known as Vitamin-C?
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Assertion (A) Natural rubber has poor elasticity.
Reason (R) It has almost no cross linkages.
Reason (R) It has almost no cross linkages.
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Which one of the following enzymes is used to digest gelatine in the process of recovering silver from the photographic film?
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Which of the following is used in plastics?
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Which of the following are fabrics that may contain polyester?
1. Polycot
2. Polywool
3. Terrycot
1. Polycot
2. Polywool
3. Terrycot
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Which one of the following artificial sweetners is modified sugar?
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In honey, which one among the following sugars predominates?
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Select the correct pair/pairs.
| Pollutant | Industry |
| a. Bleaching liquor | Paper and pulp Industry |
| b. Cellulose fibers | Pharmaceuticals Industry |
| c. Drugs and antibiotics | Mining Industry |
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The reagent which may be used to distinguish between cane sugar and glucose solution is
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Which of the following is not a natural polymer?
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Which one of the following hormones contains peptide chain?
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Match List-I with List-II and select the correct answer:
| List-I (Molecule) | List-II (Product of digestion) |
| a. Proteins | 1. Nitrogenous based and pentose sugars |
| b. Carbohydrates | 2. Fatty acids and glycerol |
| c. Nucleic acids | 3. Monosacchar ides |
| d. Lipids | 4. Amino acids |
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Sweat contains water and . . . . . . . .
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Which among the following is not a polymer?
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