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