MDCAT Chemistry Chapter 20 Macromolecules MCQ's Test With Answers

MDCAT Chemistry Chapter 20 Macromolecules MCQ's Test

Sr. # Questions Answers Choice
1 Which of the following is an addition polymer Nylon-6, 6 Polystyrene Terylene Epoxy resin
2 Adipic acid and Hexamethylenediammine polymerize to give Acrylic resins Plastic fiber Nylon-6, 6 None
3 Which of the following is Homopolymer Polyvinyl acetate Acrylic resin Polyester resins Both A and C
4 Monomer for acrylic resins is Acrylic acid Methylmethacrylate Acryloritrile All
5 Which of the following is addition polymerization PVA Polystyrene Both None
6 Polymerization process was classified in 1926 1927 1929 1931
7 Polumerization process was classified by W.H. Garold William Hackel W.H. Carothers H. Carothers
8 Which of the following is thermosetting polymer Synthetic varnishes Epoxy resins PVC Both A and B
9 Plastic toys are Copolymer Thermoplastic polymer Thermosetting polymer Homopolymer
10 Molecular mass of PVC is (DP = 1200) 63000 75000 75600 80,000
11 Which of the following are characteristics of oxidizing smog? It is yellow brownish grey haze It has unpleasant odour Its main reactant are nitric oxide & unburnt hydrocarbon All of the above
12 Primary pollutant is that: Waste product of an industry Which causes cancer Whose concentration cannot be controlled Which corrode the metal only
13 The substance which adversely affects the human health is: Ecosystem Ecosphere Atmosphere Pollutant
14 The thickness of ozone layer is: 25----50 km 3km only 25---28 km 1 km only
15 The main pollutant of leather tanneries in the waste water is due to: Lead Copper Chromium (VI) Chromium (III)
16 Which of the following is used as coagulant for purification potable water? Copper sulphate Barium sulphate Alum Nickel sulphate
17 Photochemical smog contains----as main reactants Nitrous oxide & unburnt hydrocarbons NO & brunt hydrocarbons Nitric oxide & unburnt hydrocarbons N2O & burnt hydrocarbons
18 The conc.of dissolved molecular oxygen in water which act as the most important oxidizing agent ranges from: 2ppm- 6ppm 4ppm--8ppm 2ppm--- 4ppm 2ppm --3ppm
19 Surface and ground water sources are contaminated by various human activities. Which of the following is not a human activity that cause contamination of fresh water? Rain Oil leaks-& spills Livestock waste Disposal of industrial effluents
20 CFCs destroy ozone layer. How many ozone molecule a chlorine free radical can destroy? 50000 20000 100000 10000
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