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