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{"ops":[{"insert":"\n9.\t19. In the ground state of a cobalt atom there are ___ unpaired electrons and the atom is ___.\u00a0\na.\t3, paramagnetic\nb.\t2, diamagnetic\u00a0\nc.\t5, paramagnetic\u00a0\nd.\t0, diamagnetic\u00a0\n\n10.\t20. Which of the following bond is the strongest?\na.\tcarbon \u2013 hydrogen bond\u00a0\nb.\tcarbon \u2013 carbon triple bond\nc.\tcarbon \u2013 nitrogen bond\nd.\tcarbon \u2013 carbon single bond\u00a0\n\n11.\t25. Saponification of fats needs a strong ________ to proceed to completion.\u00a0\na.\thalogen\nb.\tacid\u00a0\nc.\tcatalyst\nd.\tbase\u00a0\n\n12.\t28. Which of the following elements can only form one bond (alkane) in a Lewis structure?\u00a0\na.\tOxygen\nb.\tHydrogen\nc.\tCarbon\u00a0\nd.\tAluminum\u00a0\n\n13.\t29. Which element will have 18 electrons in its Lewis dot symbol?\u00a0\na.\tArgon\nb.\tCarbon\u00a0\nc.\tBoron\u00a0\nd.\tPhosphorus\u00a0\n\n\n"}]}
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