ECAT Chemistry Chapter 25 Macromolecules Online Test With Answers

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ECAT Chemistry Chapter 25 Macromolecules Online Test

Sr. # Questions Answers Choice
1 C6H12O6 is molecualr formula of: Glucose Dextrose Fructose All of these
2 Polyester resins have special use in: Clothing Paints Emulsion Floor covering
3 Two or more similar monomers combine to form: Homopolymer Copolymer Ter polymer Thermoplastic polymers
4 Molar mass of high molecular w.f. polymers ranges from: 1000 to 10000 10000 to 100000 100000 to 1000000 1000 to 100000000
5 The simplest separating unit of a polymer is called: Monomer Dimer Trimmer Macromer
6 Poly hydroxyl compounds of aldehyde and ketones are: Carbohydrates Proteins Fats Lipids
7 Simple sugars are : Monosaccharides Disaccharides Oligo saccharides Trisaccharides
8 Cotton has cellulose in it: 96% 97% 98% 99%
9 Cellulose does: Satisfy human appetite Stimulates intestinal peristalsis Gives fibre and bulk to the food All of these
10 The high molecular weight materials which yield on hydrolysis the amino acids is called: Carbohydrates Lipids Fatty acids Proteins
11 Factors affecting denaturation of proteins: Change in temp and pH Strong reducing agent Strong oxidizing agent All of these
12 Major food factors are: Fats and oils Carbohydrates Protiens All of these
13 Which is the derived lipid? Common fats Vitamin-D Common oils Spinolipids
14 Which property is not present in lipids? Liquid Solid or semi solid Soluble in water Form emultion
15 An oil or fat with no double bond have iodine number: Zero 100% 50% Minimum
16 The stroids of fungi and yeast and yeast are called: Vitamin D Vitamin D<sub>2</sub> Ergostrol Cholestrol
17 Which behaves as insulator for animals body? Carbohydrates Proteins Fats Skin
18 Which one of the following statements of glucose and sucrose is incorrect? Both are soluble in water Both are naturally occuring Both are carbohydrates Both are disaccharides
19 The reaction between fat and NaOH is called: Esterification Hydrogenolysis Fermentation Sponification
20 Which of the following enzymes brings about the hydrolysis of fats? Urease Maltase Zymase Lypase
21 Which of the following is a water soluble vetamin? Niacin Riboflavin Trypsin Ascorbic acid
22 Which of the following elements is not present in all proteins? Carbon Hydrogen Nitrogen Sulphur
23 Vegetables oils are: Unsaturated fatty acids Glycerides of unsaturated fatty acids Essential oils obtained form plants None of these
24 A polymeric substance that is formed in the liquid state and then hardened to a rigid solid is called a: Fiber Plastic Vanish Polyamide resin
25 The fiber which is made from acrylonitrile as monomer: PVC Rayon Fiber Acrylic fiber Polyester fiber
26 Plastics are pollution problem because many plastics: Are made from petroleleum Are very inflammable Burn to produce toxic funes Decompose to produce toxic products
27 Which of these polymers is a synthetic polymer? Animal fat Starch Cellulose Polyester
28 Which of these polymers is an addition polymer? Nylon-6,6 Polystrene Terylene Epoxy resin
29 In which of these processes are smell organic molecules made into macromolecules? The cracking of petroleum fractions The fractional distillation of crude oil The polymerization of ethane The hydrolysis of proteins
30 Which of the following is fully fluorinated polymer? Neoprene Teflon Thiokol PVC
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