ECAT Chemistry MCQ's Test For Full Book With Answers

ECAT Chemistry MCQ's Test For Full Book

Sr. # Questions Answers Choice
1 Which of the following forms a toxic substance in blood by combing with hemoglobin? Carbon dioxide Carbon monoxide Oxygen Methane
2 Which one of the following dissolves more rapidly in blood hemoglobin than oxygen? Ozone Nitrous oxide Sulphure dioxide Carbon monoxide
3 Ozone depletion in stratosphere shall result in Forest fires Increased incidence of skin cancer Global warming None of the above
4 Increased asthmatic attacks in certain seasons are related to Inhalation of seasonal pollen Eating of seasonal vegetables Low temperature Wet and dry environment
5 Domestic waste mostly constitutes Non-biodegradable pollution Biodegradable pollution Effluents Air pollution
6 Burning of fossil fuels is the main source of pollution Nitrogen oxide Nitric oxide Nitrous oxide Sulphur dioxide
7 Atomospheric pollutant is CO<sub>2</sub> CO O<sub>2</sub> N<sub>2</sub>
8 Spraying of DDT produces pollution of Air Air and water Air and soil Air, water and soil
9 Acid rains are produced by Excess NO<sub>2</sub>and SO<sub>2 </sub>from burining fossil fuels Excess production of NH<sub>3</sub>by industry and coal gas Excess release of carbon monoxide by incomplete combustion Excess formation of CO<sub>2</sub>by combustion and animal respiration
10 Carbon monoxide is pollutant as it Inactivates nerves Inhibits glycolysis Combines with oxygen Combines with hemoglobin
11 SO2and NO2produce pollution by increasing Alkalinity Acidity Neutrality Buffer action
12 Pollutant of automobile exhausts that affects nervous system/produces mental diseases is Mercury Lead Nitrogen oxide Sulphuric oxide
13 Sulphur dioxide affects Cell wall Plasmodesmata All membrane systems Nucleus
14 Cyclone collector is used for minimizing Radioactive pollution Air pollution Noise pollution Water pollution
15 Minamata disease is due to pollution of Organic waste into drinking water Oil spill in water Industrial waste containing mercury into fishing water Arsenic into the atmosphere
16 Which one is not a pollutant normally? Hydrocarbons Carbon dioxide Carbon monoxide Sulphur dioxide
17 Chief air pollutant which is likely to deplete ozone layer Sulphure dioxide Carbon dioxide Nitrogen oxides and chloro fluorocarbons
18 Atmosphere of big/metropolitan cities is polluted most by Automobile exhausts Pesticide residue Household waste Radio-active fall out
19 Which of the following is fully fluorinated polymer? Neoprene Teflon Thiokol PVC
20 Which of the following is a biodegradable polymer? Cellulose Polyethene Polyvinyl chloride Nylon-6
21 Which of the following has ester linkage? Nylon Bakelite Terylene PVC
22 Which is a protein? Nylon Rayon Natural silk Terylene
23 Bakelite is a product formed form Reaction of formaldehyde with phenol Reaction of polyethylene with phenol Reaction of polypropylene with acid It is a natural product
24 Polymer formation from monomers starts by Condensation reaction between monomers Coordination reaction between monomers Conversion of monomer to monomer ions by protons Hydrolysis of monomers
25 A condensation polymer among the following is Dacron PVC Polysterene Teflon
26 Which of the following is a constituent of nylon? Adipic acid Styrene Teflon None of these
27 Soft drinks and baby feeding bottles are generally made up of Polyester Polyurethane Polyurea Polystyrene
28 Teflon, styron and neoprene are all Copolymers Condensation polymers Homopolymers Monomers
29 Terylene is madeby polymerization of terephthalic acid with Ethylene glycol Phenol Ethanol Catechol
30 Which one of the following is not an example of chain growth polymer? Neoprene Bunna-S PMMA Glyptal
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