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