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 Which is not a steroid Cholesterol Ergosterol Phospholipids None of these
2 A fat or oil is characterised for extent of unsaturation by one of the following number, which one Rancidity number Acid number Iodine number Saponicfication number
3 Naturally occurring lipids are called Fats protein Steroids None
4 Denaturation of protein means the structure of protein is disrupted, indicate which factor foes not denature protein Heating protein pH changes Oxidising agent Keeping pH 7.35
5 A polymer may be Homopolemer Co-polymer Terpolymer All of these
6 The temp. and pressure used for PVC polymerization is 10°C and 10 atm 20°C and 20 atm 52°C and 9 atm 100°C and 10 atm
7 Which of the following polymers is used for weather resistant paints Arcylic resins Polyvinyl acetate Polystyrene PVC
8 Nylon, 6,6 is a condensation polymer of Adipic acid and glycol Phthalic acid and glycol Adipic acid and hexaethylene diamine Pthalic acid and hexaethylene diamine
9 Which polymerization is free radical machanism based Addition Condensation Both a and b None
10 The polymers which can be re-softened again and again are caled Thermoplastic Thermosetting Both a and b None
11 One of the followings is not type of polymer Homopolymer Copolymer Heteropolymer Terpolymer
12 The temp. and pressure used for PVC polymerization is 10°C and 10 atm 20°C and 20 atm 52°C and 9 atm 100°C and 10 atm
13 The other name of cross linked polymers is Linear polymer Branched polymer Inter connected polymers None of these
14 Organic synthetic or man made polymers are plastics, rubber and fibre. Which is not a synthetic polymer Silk Polyester Polyvinyl chloride Nylon
15 In macromolecules DP stands for Dissociation parameter Dissociation polymer Degree of polymerization None of these
16 A polymer may be Linear Branched Cross linked All of these
17 Macromolecules or polymers are large molecules built up from small molecules called monomers. This hypothesis put forward by Schrodixger Standinger Lewis Newton
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