ECAT Chemistry MCQ's Test For Full Book With Answers

ECAT Chemistry MCQ's Test For Full Book

Sr. # Questions Answers Choice
1 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
2 Which of the following polymers is used for weather resistant paints Arcylic resins Polyvinyl acetate Polystyrene PVC
3 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
4 Which polymerization is free radical machanism based Addition Condensation Both a and b None
5 The polymers which can be re-softened again and again are caled Thermoplastic Thermosetting Both a and b None
6 One of the followings is not type of polymer Homopolymer Copolymer Heteropolymer Terpolymer
7 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
8 The other name of cross linked polymers is Linear polymer Branched polymer Inter connected polymers None of these
9 Organic synthetic or man made polymers are plastics, rubber and fibre. Which is not a synthetic polymer Silk Polyester Polyvinyl chloride Nylon
10 In macromolecules DP stands for Dissociation parameter Dissociation polymer Degree of polymerization None of these
11 A polymer may be Linear Branched Cross linked All of these
12 Macromolecules or polymers are large molecules built up from small molecules called monomers. This hypothesis put forward by Schrodixger Standinger Lewis Newton
13 The chemical reactivity of glass is reduced by the use of Fluxes Formers Stabilizers None of these
14 Which of the following fertilizers is useful for paddy rice Ammonium nitrate Ammonium sulphate Urea Ammonium chloride
15 The most commonly and widely used nitrogen fertilizer in Pakistan is Urea Ammonium nitrate Ammonium sulphate Ammonium chloride
16 The natural fertilizers consist of Plants Animals Both plants and animals Microorganisms
17 The main source of natural fibre is Animal fibres Vegetables fibres Mineral fibres All of the above
18 The fibre which is made from vinylidine chloride polymer is called Rayon fibre Azlon fibre Acetate fibre Saran fibre
19 Macro-nutrients are required in quantities ranging from 5 kg - 200 kg 2 kg - 100 kg 1 kg - 50 kg 10 kg - 100 kg
20 Phosphorous helps the growth of Root Leave Stem Seed
21 Which woody raw material is used for the manufacture of paper pupl Cotton Bagasse Poplar Rice straw
22 Formation of PVC form vinyl chloride is an example of Substitution reaction Addition polymerization Condensational reaction Aldol condensation
23 Which of the following is commonly called polyamide Nylon Rayon Terylene Oridon
24 Which one of the following substances is a synthetic polyester Cotton Nylon Rayon Terylene
25 The formation of PVC from vinyl chloride is an example of Substitution reaction Addition polymerization Condensation polymerization Condensation reaction
26 A chemical inert and heat resistant plastic, that is made form tetrafluoroethlene, is called Teflon PVC Bakelite Polyamide
27 The potassium fertilizers are preferred for horticulture, tobacco and potatones, which of the following is popular potassium fertilizer Potassium oxide Potassium chloride Potassium sulphate Potassium nitrate
28 Which of the following synthetic phosphorous fertilizers is marked as super phosphate Calcium dihydrogen phosphate Appetite Calcium phosphate Wavellite
29 The raw materials for the manufacture of urea fertilizer is Hydrogen and ammonia Steam, methane, ammonia Methane and air None of these
30 The widely used nitrogen fertilizer that contains about 46% nitrogen is Ammonia Ammonium nitrate Ammonium sulphate Urea
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