MDCAT Chemistry Chapter 22 Online Test With Answers

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MDCAT Chemistry Chapter 22 Online Test

Sr. # Questions Answers Choice
1 Ozone is most of the tropical regions acts as a pollutant and causes Damages to eyes Aggravates asthma Chest discomfort All of these
2 Incineration is a process in which solid waste is burned at high temperature ranging from 500 to 600°C 900 to 1000°C 1000 to 1100°C 600 to 700°C
3 Solid waster of the city is disposed off by dumping in a landfill. Which of the following gas is produced in the landfill Oxygen Chlorine Hydrogen sulphide Hydrogen chloride gas
4 The disposal of domestic refuse, commercial and industrial solid wastes are studied under the title Solid waste management Waste management Solid management Semisolid management
5 Biochemical oxygen demand is the capacity of organic matter in natural water to consume oxygen 2 days 5 days 6 days 7 days
6 Surface and ground water sources are contaminated by various human activities. Which of the following is not human activity that causes contamination in fresh water Live stock waste Oil leaks and spills Desposal of industrial effluents Rain
7 Which of the following is not the required condition for the formation of smog Sufficient NO Sunlight Less movement of air Winds
8 The normal amount of overhead ozone is 350 DU 450 DU 400 DU 300 DU
9 The normal amount of overhead ozone is 350 DU 450 DU 400 DU 300 DU
10 The yellow color present in the photo chemical smog is due to presence of the Carbon dioxide Nitrogen dioxide Chlorine All
11 How much quantity of total water is available as fresh water 3% 1% 10% 21%
12 How much quantity of water is in the domestic use 0.08% 16% 24% 90%
13 The ozone depletion in the stratophere is mainly due to the reaction of ozone with Freons CFCs Both A and B None
14 The suspended particles in the raw water can be removed by the Coagulation Aeration Hydration Dehydration
15 The smog having high contents of SO2is Neutral smog Reducing smog Oxidizing smog Artificial smog
16 Ozone is usually produced in the South polar region North pole region Tropical region Thermosphere zone
17 The water is considered to be polluted when the concentration of oxygen in it is 6 - 9ppm 6 ppm 8 ppm Less than 4pm
18 Which of the following factors is not used to determine the quality of water COD BOD DO Available chlorine
19 The temperature of in the incineration of industrial and hazardous waste process has range 900 - 1000°C 250 - 500°C 950 - 1300°C 500 - 900°C
20 A single chloride free radical can destroy the ozone molecules 100 100000 10000 10
21 The pH range of the acid rain is 7 - 6.5 6.5 - 6 6 - 5.6 Less than 5
22 COD of water can be measured by Cr<sub>2</sub>O<sub>3</sub> Cr<sub>2</sub>O<sub>4</sub><sup>-2</sup>ions Cr<sub>2</sub>O<sub>7</sub><sup>-2</sup>ions None of these
23 BOD means Boron oxygen deuterium Biochemical oxygen demand Biochemical oxygen dissolved Biochemical oxygen death
24 Lead pollution is mainly due to Metallic pollution Space pollution Acid rain Cd pollution
25 Detergent greatly effects the Aquatic life Modern life Terrestrial life Plants life
26 Ozone is effectively removed by TNT CFCs PVC CNG
27 Ozone layer is 25 - 28 km high 26 - 29 km high 24 - 27 km high 20 - 28 km high
28 Sea gets polluted bu accidental oil spills and Atmospheric pressure Nitrogen gas Cargo oil tankers Aero plane
29 Water is essential for life on Moon Space Earth Sun
30 Ozone is a gas having boiling point Unstable High Low Moderate
31 Leaching of nutrients is due to Drying of soil Combustion of soil Acidification of soil Neutralization of soil
32 The overall effect of the photochemical smog in the after noon is built up of Neutralization oxidizing agent Reducing agent Activating agent
33 The respiration process taking place in animals depends on a difference in  Partial pressure Osomotic pressure Vapour pressure Atomospheric pressure
34 A chemist says that glass must be a super cooled liquid. the reason that he might have in his mind is that glass has: Definite shape Definite volume Crystalline structure No crystalline structure
35 The bonding occurs among polar covalent molecules containing H and one of the small electronegative element such as O,F or N is called: Ionic bonding Metallic bonding Bridge bonding H-bonding
36 0.1M HCI having pH =1.0 it is about 100 time stronger than acetic acid what will be the pH of acetic acid: 0.1&nbsp; 1.3 2 3
37 Chemical equilibrium involving  reactants and products in more than one phase is called: Homogeneous&nbsp; Heterogeneous&nbsp; Dynamic Static
38 The morality of the solution containing x grams ammonium sulfate in 500cm3 of the solution is 0.6 what is x? 39.6 40.5 42.7 45.1
39 What is the morality of a solution containing 15g of urea is 500cm3 of solution? 1M 0.5M 2M 1.5M
40 Which is the following is true about galvanic cell: Reduction occurs at cathode Reduction occurs at anode Anode is negatively charged Chathode is positively charged
41 Lanthanides an actinides belong to following group of periodic table: IB VIIIB IIB IIIB
42 The Catalyst used in the contact tower for the manufacture of H2SO4  is easily poisoned by: Nitrous oxide Nitrogen gas Arsenic oxide&nbsp; Carbon dioxide&nbsp;
43 Alkali metals react viotlently with halogens: Halides Anhydrides Hydrides None of the above
44 Boron, aluminium, gallium, indium and thallium belong to group lll-A of the periodic table show a decrease with increasing relative atomic mass: Ionic character of the compounds The first ionization energy&nbsp; The basic character of the oxides The stability of +2 oxidation
45 Ozone is an allotropic form of: Carbon Phosphorus Oxygen&nbsp; Sulfur&nbsp;
46 Electropositive character increases down the groups due to: Increase in atomic size of the elements Decrease in ionization potential Decreases in electromagnetically of the element All the above
47 Which of spectral lines when atoms are subjected to strong electric field is called: Compton effect Stark effect Zeeman effect Photoelectric effect
48 Splitting of spectral lines when atoms are subjected to strong electric field is called: Compton effect Stark effect Zeeman effect Photoelectric effect
49 The force which hold the atoms together to form a compound is called: Dispersion forces London forces A chemical bond Ven der wall's forces
50 Which one of the following is an organic compound? Calcium carbide Calcium cyanide Carbon disulphide None of these&nbsp;
51 The destructive distillation of coal gives three products. which of following is not the product of destructive distillation of coal? Coal tar CO<sub>2</sub> Coal gas Coke
52 As the number of carbon atoms increase the number of isomers also increase. The six carbon compound hexane has as many as: 10 isomers 3 isomers 5 isomers 6 isomers
53 Which of the following air pollutant is called quiet killer PAN CO NO<sub>3</sub> SO<sub>3</sub>
54 Sulphate aerosols cause severe respiratory problems particularly among Infants Women Young people Old people
55 Which of the following does not contribute towards the formation of photochemical smog? NO SO<sub>2</sub> O<sub>3</sub> Hydrocarbons
56 Which of the following substance is not present in acid rain? Sulphuric acid Nitric acid Sulphurous acid Acetic acid
57 Global warming is mainly caused by ______ radiations UV I.R gama X-rays
58 Amount of fresh water used by agriculture is 2% 23% 69% 97%
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