ATTENTION:
Kindly note that you will be presented with 50 questions randomized from the NOUN question bank. Make sure to take the quiz multiple times so you can get familiar with the questions and answers, as new questions are randomized in each attempt.
Good luck!
CHM205
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1. Nitrogen is obtained commercially from ___________
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2. Lead dioxide is used as ___________
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3. Continuous exchange of nitrogen between the atmosphere and the biosphere is called ___________
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4. The heavier elements of group IV functions as ___________
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5. The second most abundant element in the earth’s crust after oxygen is __________
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6. Which of these is not a group V element?
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7. Ammonia acts as a Lewis base because it possesses a _________
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8. Nitriles are oxidized to nitrates by ___________
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9. The ‘great balls of carbon’ in which carbon atoms are symmetrically arranged in closed shells are known as __________
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10. Bacteria which convert nitrogen compounds into free nitrogen are known as ___________ bacteria
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11. Of all halogens, _____________ has the highest ionization energy
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12. A derivative of ____________ is used in making photographic plates
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13. _____________ is the only liquid halogen.
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14. ____________ has the highest electronegativity value
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15. The ground state electronic configuration of phosphorus is ___________
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16. The only halogen that can oxidize chlorine is __________
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17. Which of these is true of interstitial carbide?
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18. All group V elements except ____________ react with sulphur to form sulphides.
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19. One of these is not a form of silica?
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20. Zeolites is used in water as____________
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21. Silicates are salts of______
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22. Solid Carbondioxide is known as____________
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23. The form of carbon that conducts electricity is _________
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24. Which of the group V elements give only one oxidation state?
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25. Which of the group V metals can not be obtained from its sulphide ore?
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26. The most metallic element in group IV is __________
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27. Which of these is not an interstitial carbide?
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28. Of the group IV element, the one that exhibits anomalous behaviour is ___________
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29. Mixed chloroflorocarbons are known as _________
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30. The oxide of nitrogen which is colourless and rather unreactive is _________
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31. The hybridization of nitrogen in ammonia is ___________
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32. PVC pipes are manufactured using ____________
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33. When carbon is linked to elements of lower or approximately the same electronegativity,the binary compounds formed are termed
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34. Arsenic has a _____________ odour
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35. The group of elements in the periodic table that is associated with semiconductor properties is ___________
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36. The molecular formula of hydrazine is ________
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37. A derivative of ------------- is used in making photographic plates
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38. Which of these is not a component of lead-acid battery?
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39. Which of these is not a raw material for the cement manufacture?
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40. Conversion of nitrogen into its compounds is known as _________
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41. The element known as ‘super halogen’ is _________
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42. Teflon is form from a derivative of-------------
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43. Elements having some metallic and nonmetallic properties are called _______
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44. ___________are the fibrous silicates, having high tensile strength and heat/fire resistance, used as insulators and steam pipe lagging.
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45. ____________is a property by virtue of which elements form long chain compounds by single or multiple bonds between atoms of the same element.
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46. Hydrazine is used as a ________ along with liquid air or oxygen as oxidant.
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47. The halogen _______ is solid at room temperature
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48. The purest form of silicon dioxide is ___________
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49. Which of these is not a carbide?
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50. The halogen which has only two complete electron shells below the valence shell is _______
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