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