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!
CHM101
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1. Halogens have ________ electron affinity
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2. The percentage of deuterium in natural occurring hydrogen is ________
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3. Magnesium hydride is an example of ________ hydride.
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4. How many elements are there in period 6 of the periodic table ? __________
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5. Which of these periods of the periodic table has only eight elements? ________
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6. Which of these is not a covalent hydride? ______
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7. Which of these statements is not true of metallic elements?_________
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8. The phenomenon in which a metal is surrounded by solvent molecules is called ________
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9. Elements which achieve a stable noble gas configuration by accepting just one electron are collectively called _______
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10. The stability of alkali salts depend on ______
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11. Stability of alkali salts depends on which of the following?_______________
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12. Why was Newlands law of octaves rejected? ____________
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13. Increase in principal quantum number(n) means _________ of the atomic radii
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14. Alkaline metals are extracted mainly by _________
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15. Fuel cell have advantage over power plants in that its efficiency is _________
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16. Within the alkali metals, atomic size _________ down the group.
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17. All these can be used as raw materials for the production of oxygen except ______
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18. Hydrogen is discharged at ___________ electrode during the electrolysis of brine
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19. Which of these alkali metals is the most electro-positive?______________
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20. Ionization energy ________ down the group within the alkali metals
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_____states that as far as possible in a given atom in the ground state, electrons in the same sub shell will occupy different orbitals and will have parallel spins.
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22. The presence of hydrogen bond in most molecules is responsible for the following EXCEPT ________
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23. The f-blocks elements are otherwise known as ________
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24. The alkali metals belong to the _______ elements
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25. Which of the isotopes of hydrogen is radioactive?_________
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26. The name given to group 2 elements in the periodic table is ________
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27. _________ is a radioactive isotope of hydrogen obtained on a large scale by irradiation of Li/Mg alloy of $ LiFe{3}$ with slow neutrons.
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28. Which of these statements is not true of metallic hydrides? _______
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29. Hydrogen can be obtained economically as a bi-product in the electrolysis of a compound called ________
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30. The elements which the extra electron enters(n2)f orbitals are called ________
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31. $1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{7}4s^{2}$ is the electronic configuration for an element with atomic number ___________
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32. How many electrons are in potassium atom? __________
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33. Inner transition elements are otherwise known as ________
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34. _________ metals react with sulphur to form simple sulphides and polysulphides.
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35. Hydrides of alkali metals react with water to liberate which of these?______________
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36. Which property was used by Mendeleev to classify elements?_______________
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37. Which of these alkalis has the most stable fluoride?______________
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38. Hydride ion is unusually _________ with respect to size
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39. _______ is a compound formed when hydrogen combines covalently with non-metals.
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40. Which of the following is not true as we move down a group of s and p-block elements in the periodic table? ________
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41. A consequence of _______ is the formation of a chelate ring.
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42. Which of these elements has the electronic configuration of $1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{10}4s^{1}$? __________
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43. Lithium in the form of lithium stearate is used for the production of a substance known as __________ which minimizes friction between moving parts.
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44. The tendency of an atom to attract towards itself shared electron pair of a bond is known as ________
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45. An element that shows some properties similar to alkali metals and some others similar to those of halogens is most likely to be _________
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46. Ortho and para-hydrogen exemplifies a type of isomerism referred to as __________ isomerism.
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47. Atoms of an element which have the same atomic number but different mass number is known as _________
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48. The most abundant metal in sea water is called ______.
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49. The attractive force which binds hydrogen atom of one molecule with an electronegative atom of another molecule is known as _________
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50. Berylium , an alkaline earth metal belongs to the _______ block elements.
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