CHM205




Category: CHM205

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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 ground state electronic configuration of phosphorus is ___________

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2. _____________ is the only liquid halogen.

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3. Ammonia acts as a Lewis base because it possesses a _________

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4. Elements having some metallic and nonmetallic properties are called _______

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5. Deficiency of one of these leads to goitre in humans

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6. Hydrazine is used as a ________ along with liquid air or oxygen as oxidant.

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7. Continuous exchange of nitrogen between the atmosphere and the biosphere is called ___________

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8. A derivative of ------------- is used in making photographic plates

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9. The form of carbon that conducts electricity is _________

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10. Conversion of nitrogen into its compounds is known as _________

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11. ___________ is obtained when of silicates mainly of sodium and calcium is melted and supercooled

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12. ____________ has the highest electronegativity value

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13. ____________is a property by virtue of which elements form long chain compounds by single or multiple bonds between atoms of the same element.

14 / 50

14. PVC pipes are manufactured using ____________

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15. The only halogen that can oxidize chlorine is __________

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16. Bacteria which convert nitrogen compounds into free nitrogen are known as ___________ bacteria

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17. The halogen which has only two complete electron shells below the valence shell is _______

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18. Which of these is not a group V element?

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19. The oxide of nitrogen which is colourless and rather unreactive is _________

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20. Mixed chloroflorocarbons are known as _________

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21. A derivative of ____________ is used in making photographic plates

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22. The second most abundant element in the earth’s crust after oxygen is __________

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23. One of these is not a form of silica?

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24. Which of these is not a raw material for the cement manufacture?

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25. Lead dioxide is used as ___________

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26. Which of these is true of interstitial carbide?

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27. Zeolites is used in water as____________

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28. The molecular formula of hydrazine is ________

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29. Which of the group V metals can not be obtained from its sulphide ore?

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30. The ‘great balls of carbon’ in which carbon atoms are symmetrically arranged in closed shells are known as __________

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31. Solid Carbondioxide is known as____________

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32. The heavier elements of group IV functions as ___________

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33. ___________are the fibrous silicates, having high tensile strength and heat/fire resistance, used as insulators and steam pipe lagging.

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34. Which of these is not a component of lead-acid battery?

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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. Of all halogens, _____________ has the highest ionization energy

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37. Zeolites are also called ____________

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38. The purest form of silicon dioxide is ___________

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39. The element known as ‘super halogen’ is _________

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40. Which of these is not a carbide?

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41. All group V elements except ____________ react with sulphur to form sulphides.

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42. Nitriles are oxidized to nitrates by ___________

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43. The most metallic element in group IV is __________

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44. Arsenic has a _____________ odour

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45. Silicates are salts of______

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46. The halogen _______ is solid at room temperature

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47. Nitrogen is obtained commercially from ___________

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48. When carbon is linked to elements of lower or approximately the same electronegativity,the binary compounds formed are termed

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49. Which of the group V elements give only one oxidation state?

50 / 50

50. Of the group IV element, the one that exhibits anomalous behaviour is ___________

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