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
1 / 50
1. The halogen _______ is solid at room temperature
2 / 50
2. Which of these is not a raw material for the cement manufacture?
3 / 50
3. The second most abundant element in the earth’s crust after oxygen is __________
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4. The group of elements in the periodic table that is associated with semiconductor properties is ___________
5 / 50
5. ____________is a property by virtue of which elements form long chain compounds by single or multiple bonds between atoms of the same element.
6 / 50
6. Of all halogens, _____________ has the highest ionization energy
7 / 50
7. Hydrazine is used as a ________ along with liquid air or oxygen as oxidant.
8 / 50
8. Which of these is not an interstitial carbide?
9 / 50
9. A derivative of ____________ is used in making photographic plates
10 / 50
10. The purest form of silicon dioxide is ___________
11 / 50
11. The most metallic element in group IV is __________
12 / 50
12. When carbon is linked to elements of lower or approximately the same electronegativity,the binary compounds formed are termed
13 / 50
13. Nitrogen is obtained commercially from ___________
14 / 50
14. Silicates are salts of______
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15. Lead dioxide is used as ___________
16 / 50
16. The molecular formula of hydrazine is ________
17 / 50
17. A derivative of ------------- is used in making photographic plates
18 / 50
18. Continuous exchange of nitrogen between the atmosphere and the biosphere is called ___________
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19. All group V elements except ____________ react with sulphur to form sulphides.
20 / 50
20. Which of these is not a group V element?
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21. Of the group IV element, the one that exhibits anomalous behaviour is ___________
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22. Which of these is not a carbide?
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23. The only halogen that can oxidize chlorine is __________
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24. The form of carbon that conducts electricity is _________
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25. The ‘great balls of carbon’ in which carbon atoms are symmetrically arranged in closed shells are known as __________
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26. Ammonia acts as a Lewis base because it possesses a _________
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27. Which of the group V metals can not be obtained from its sulphide ore?
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28. _____________ is the only liquid halogen.
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29. One of these is not a form of silica?
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30. The element known as ‘super halogen’ is _________
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31. Deficiency of one of these leads to goitre in humans
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32. Which of the group V elements give only one oxidation state?
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33. Teflon is form from a derivative of-------------
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34. Solid Carbondioxide is known as____________
35 / 50
35. Conversion of nitrogen into its compounds is known as _________
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36. ___________are the fibrous silicates, having high tensile strength and heat/fire resistance, used as insulators and steam pipe lagging.
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37. ____________ has the highest electronegativity value
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38. Zeolites are also called ____________
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39. Elements having some metallic and nonmetallic properties are called _______
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40. PVC pipes are manufactured using ____________
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41. The oxide of nitrogen which is colourless and rather unreactive is _________
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42. Bacteria which convert nitrogen compounds into free nitrogen are known as ___________ bacteria
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43. Zeolites is used in water as____________
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44. The hybridization of nitrogen in ammonia is ___________
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45. The ground state electronic configuration of phosphorus is ___________
46 / 50
46. Which of these is true of interstitial carbide?
47 / 50
47. Which of these is not a component of lead-acid battery?
48 / 50
48. Mixed chloroflorocarbons are known as _________
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49. ___________ is obtained when of silicates mainly of sodium and calcium is melted and supercooled
50 / 50
50. Nitriles are oxidized to nitrates by ___________
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