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