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