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