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Study Resources (Chemistry)

21) Choose the INCORRECT statement. A) By electrode potentials, fluorine is the least reactive halogen. B) Chlorine is prepared industrially by the electrolysis of NaCl. C) Fluorine is usually prepared by electrolysis. D) Bromine can be extracted from seawater. E) Iodine is obtained commercially from inland brines or from sodium.
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11) Choose the INCORRECT statement. A) Compounds with xenon in several oxidation states have been formed. B) The eight outer shell electrons cause chemical inertness. C) Xenon reacts directly only with fluorine. D) Noble gases exist as diatomic molecules. E) Most noble gas compounds contain either fluorine or oxygen. 12) Choose.
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41) The Frasch process for the production of elemental sulfur has been largely supplanted by a gas-phase process using the reduction of sulfur dioxide by: A) H2S(g) B) H2O(g) C) CS2(g) D) H2SO4(g) E) O3(g) 42) Which name/formula combination is INCORRECT? A) tetrathionate/S4O62- B) sulfurous acid/H2SO3 C) thiosulfate/S2O32- D) calcium.
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71) Give the correct name for [AuF4]-. A) gold fluoride B) tetrafluoroaurate(III) C) gold tetrafluoride D) tetrafluorogold(III) E) tetrafluoride gold 72) Give the correct name for [Fe(CN)6]4-. A) hexayanoiron(II) B) iron hexacyanide C) hexacyanoferrate(II) D) hexacyanide iron(II) E) hexacyanoferrate(III) 73) What is the correct IUPAC name for [Co(NH3)6]2+? A) hexammoniacobaltate(II).
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21) Choose the INCORRECT statement about transition elements. A) Ferromagnetism occurs only in elements with paired electrons. B) Ferromagnetism is unique to Fe, Co and Ni. C) Ferromagnetism occurs due to atoms combining in the solid state in domains. D) Paramagnetism is due to unpaired electrons. E) Ferromagnetism requires that.
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21) Choose the INCORRECT formula/name combination for ligands. A) -O2C-CO2-  oxalato (ox) B) S2O32-  thiosulfato C) CH3NH2 ammino D) SCN- bonded to S thiocyanato-S- E) NCS-  bonded to N thiocyanato-N- 22) It is known that the sulfhydryl group, -SH, forms strong coordinate bonds to certain heavy metal ions..
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1) The noble gas  Xe is obtained commercially from air by fractional distillation. 2) The noble gas Xe is completely unreactive. 3) "Halogen" means "soluble salts". 4) Halogen molecules are diatomic. 5) Oxygen is obtained commercially from air by fractional distillation. 6) Selenium is obtained by the Frasch process. 7) Both bismuth and arsenic are obtained.
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11) Galvanized steel is iron coated with cadmium  to prevent rust. 12) Lanthanides  are very difficult to separate from each other because of the similarities in chemical properties. 13) Lanthanides are also called rare earth elements. 14) Which of the following is uncharacteristic for the elements of the first transition series? A) an.
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31) Choose the INCORRECT statement. A) One popular chelating agent is EDTA. B) [Cr(NH3)4Br]Cl and [Cr(NH3)4Cl]Br are examples of ionization isomerism. C) [Zn(NH3)4][CuCl4] is an example of coordination isomerism. D) A tetrahedral complex cannot have a geometric isomer. E) Enantiomers are structural isomers. 32) The compound PtCl2(en)2 [en = H2NCH2NH2].
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