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