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