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