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