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