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