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