Structure & Bonding (Double) quiz Loading... 1. Give the definition of a covalent bondStrong electrostatic attraction between a shared pair of electrons and two nucleiStrong electrostatic attraction between a shared pair of electrons and a nucleusStrong electrostatic attraction between oppositely charged ionsStrong electrostatic attraction between a postive ion and a sea of delocalised positive ionsQuestion 1 of 12 Loading... 2. Explain what is meant by electric currentThe rate of flow of ions onlyThe rate of flow of elephantsThe rate of flow of electrons onlyThe rate of flow of charged particles (e.g. of electrons or ions)Question 2 of 12 Loading... 3. Do ionic substances conduct electricity?Yes, ionic substances always conduct electricityNot when solid, but they do when either molten or in solutionNo, ionic substances never conduct electricityOnly when moltenQuestion 3 of 12 Loading... 4. Suggest why buckminsterfullerene, C₆₀, has a low melting point.Buckminsterfullerene has a giant covalent structure with many strong covalent bonds that need a lot of energy to breakBuckminsterfullerene has a giant metallic structure with weak forces of attraction between layersBuckminsterfullerene has a simple molecular structure with strong intermolecular forces that require a lot of energy to overcomeBuckminsterfullerene has a simple molecular structure with weak intermolecular forces that require little energy to overcomeQuestion 4 of 12 Loading... 5. Describe the structure of an ionic compound, e.g NaClA giant structure held together by the attraction between oppositely charged ionsA giant structure held together by the attraction between positive metal ions and a sea of delocalised electronsA giant structure held together by intermolecular forcesA giant structure held together by the attraction between similarly charged ionsQuestion 5 of 12 Loading... 6. Explain why methane gas, CH₄, is a gas at room temperatureMethane has a giant covalent structure with many strong covalent bonds which require a lot of energy to overcomeMethane has a simple molecular structure with weak intermolecular forces that require little energy to overcomeMethane has a giant covalent structure with many weak covalent bonds which require little energy to overcomeMethane has a simple molecular structure with strong intermolecular forces that require a lot of energy to overcomeQuestion 6 of 12 Loading... 7. Explain, in terms of its structure, why graphite can act as a lubricant.Graphite is a smooth metal so creates a surface with little frictionGraphite has strong forces of attraction between layers. These layers can slide over each otherGraphite has weak forces of attraction between layers. These layers can slide over each otherGraphite has a low melting point so becomes liquid when heated by frictionQuestion 7 of 12 Loading... 8. In the dot and cross diagram of the outer electrons showing the covalent bonding in a molecule of nitrogen (N₂), how many electrons should be shown in areas 1, 2 and 3?There should be two electrons in area 1, four electrons in area 2, and two electrons in area 3There should be two electrons in area 1, six electrons in area 2, and two electrons in area 3There should be three electrons in area 1, four electrons in area 2, and three electrons in area 3There should be four electrons in area 1, two electrons in area 2, and four electrons in area 3Question 8 of 12 Loading... 9. State the fomula for the two ions in iron (II) sulfideFe³⁺ and S³⁻Fe⁺ and S⁻Fe³⁺ and S²⁻Fe²⁺ and S²⁻Question 9 of 12 Loading... 10. Do larger molecules have higher or lower boiling points than smaller molecules?HigherIt depends on which atoms are presentLowerSize doesn\'t affect boiling pointQuestion 10 of 12 Loading... 11. What is needed to complete this diagram to show the ionic bonding in sodium chloride, NaCl ?1) eight electrons around the chloride (seven dots and one cross) 2) A charge of -1 on the sodium and +1 on the chloride1) seven electrons around the sodium 2) one electon around the chloride 3) A charge of +1 on the sodium and -1 on the chloride1) seven electrons around the chloride 2) one electon around the sodium 3) A charge of +1 on the sodium and -1 on the chloride1) eight electrons around the chloride (seven dots and one cross) 2) A charge of +1 on the sodium and -1 on the chlorideQuestion 11 of 12 Loading... 12. Describe the formation of a covalent bondThe electrostatic attraction between positive metal ions and a sea of delocalised electronsThe sharing of a single electron between two nucleiThe transfer of electrons from one atom to anotherThe sharing of a pair of electrons between two nucleiQuestion 12 of 12 Loading... Related Posts:The entire quiz question bank!The entire quiz question bank (Double only)!Key Calculations quizEquilibria (triple) quizCondensation Polymers quizElectrolysis quiz Hydr0Gen2020-03-11T12:55:09+00:00Categories: Uncategorized|Tags: Quiz, Topic: Structure & Bonding| Share This Story, Choose Your Platform! FacebookXRedditLinkedInTumblrPinterestVkEmail
