Atmospheric Chemistry MCQ
1. In industrialized nations, the two most deadly sources of indoor pollution are ________.
Answer
Correct Answer:
Random and cigarette smoke
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2. It is believed the most prominent means by which humans add co2 to the atmosphere is by ________.
Answer
Correct Answer:
The burning of coal and other fossil fuels
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3. Crystalline salts such as cesium bromide form _____ bonds with __________.
Answer
Correct Answer:
Ionic, electrostatic attractions
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4. Rising and falling of air over large areas is most properly known as ________ and ________.
Answer
Correct Answer:
Ascent, subsidence
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5. The so-called "winds of commerce" are the ________ winds.
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6. Cyclonic flow means ____ in either the northern or southern hemisphere.
Answer
Correct Answer:
Circulation around a low pressure center
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7. Current concentration of co2 in the atmosphere is _______ according to the keeling graph.
Answer
Correct Answer:
Over 400 ppm
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8. The absorption of human-generated co2 by the oceans __________.
Answer
Correct Answer:
All of the listed responses are correct
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9. Stratospheric ozone depletion is currently most serious ________.
Answer
Correct Answer:
Over New Zealand and Australia
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10. Earths __________ and __________ help it to sustain life.
Answer
Correct Answer:
Biosphere, geosphere, hydrosphere ; atmosphere
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11. The volume of 0.15 mol of an ideal gas at 365 torr and 97 c is ________ L.
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12. Oxygen (o2)is being added to the atmosphere by ________.
Answer
Correct Answer:
Vegetation
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13. Oxidation of a 2 alcohol with chromic acid results in the production of ________.
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14. Of the following, ________ is not yet regulated by the epa.
Answer
Correct Answer:
Carbon dioxide
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15. Lead enters the atmosphere as a particulate pollutant. this is a problem because lead ________.
Answer
Correct Answer:
Is a precious metal, and it is being lost to the atmosphere
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16. Halons and cfcs both _______.
Answer
Correct Answer:
Destroy ozone in the stratosphere
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17. Carbon dioxide and water vapor are variable gases because _____.
Answer
Correct Answer:
Their amounts vary throughout the atmosphere
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18. Carbon dioxide and ________ are the most important heat absorbing gases in the lower atmosphere.
Answer
Correct Answer:
Water vapor
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19. Air near earth's surface tends to be ________.
Answer
Correct Answer:
Warmer and wetter; then it rises, expanding and cooling
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20. The ozone layer is located in the _____.
Answer
Correct Answer:
Stratosphere
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21. Over warm oceans, water vapor comprises about ________ percent of the volume of the atmosphere.
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22. The main component of the lower atmosphere by total volume is ________.
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23. Photochemical smog differs from industrial smog in that it ________.
Answer
Correct Answer:
Is formed only in the presence of sunlight
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24. Ozone is destroyed by cfcs because the ________ in the cfcs combines with oxygen.
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25. Today, ________ has the worst acid deposition problem, primarily because of ________.
Answer
Correct Answer:
China; coal-fired electrical and industrial plants
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26. The central atom in ________ does not violate the octet rule.
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27. A gas under constant pressure will ____________ when ____________.
Answer
Correct Answer:
Expand; heated
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28. Air temperatures in the upper stratosphere are ______ air temperatures in the lower stratosphere.
Answer
Correct Answer:
Higher than
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29. For a 1s orbital, respectively n = _____ and l = _____
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30. Of the following, only __________ is impossible for an ideal gas.
Answer
Correct Answer:
V1T1 = V2T2
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31. If all of the stratospheric ozone suddenly disappeared, ________.
Answer
Correct Answer:
Most life on Earth would cease to exist because of the amount of UV radiation penetrating the atmosphere
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32. Photochemical smog is characteristic of urban areas with many vehicles and a climate that is ____.
Answer
Correct Answer:
Warm and sunny
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33. The solubility of carbon dioxide in soda water decreases with _________ temperature.
Answer
Correct Answer:
Increasing
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34. Gaseous mixtures ________.
Answer
Correct Answer:
Are all homogeneous
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35. When the kelvin temperature of an enclosed gas doubles, the particles of the gas ____.
Answer
Correct Answer:
Move faster
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36. Suppose you take a deep breath. you have just inhaled approximately ________ from the troposphere.
Answer
Correct Answer:
78% nitrogen and 21% oxygen
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37. Nitrogen gas consists of _____
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38. Nitrogen and oxygen are _____ gases in the atmosphere.
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39. In the oceans, global warming has ______.
Answer
Correct Answer:
Made the water more acidic
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40. In the kinetic-molecular theory of gases, the assumption is made that gas molecules________.
Answer
Correct Answer:
Move rapidly in random directions
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41. Environmental bioremediation using bacteria is least effective on _____.
Answer
Correct Answer:
Heavy metals
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42. Co(g) effuses at a rate that is ______ times that of xe(g) under the same conditions.
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43. Co(g) effuses at a rate that is ______ times that of kr(g) under the same conditions.
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44. Co(g) effuses at a rate that is ______ times that of br2(g) under the same conditions.
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Chemistry MCQs | Topic-wise
