Structure & Bonding (Double) quiz Loading... 1. A substance is found not to conduct electricity even when molten. What type of bonding does the substance have?IonicMetallicCovalent or ionicCovalentQuestion 1 of 12 Loading... 2. In the dot and cross diagram of the outer electrons showing the covalent bonding in a molecule of methane (CH₄), how many electrons should be shown in areas 1, 2, 3, and 4?There should be one electron in each of the areas 1, 2, 3 and 4There should be two electrons in each of the areas 1, 2, 3 and 4, and an additional 6 electrons around the outside of each hydrogen atomThere should be two electrons in each of the areas 1, 2, 3 and 4There should be four electrons in each of the areas 1, 2, 3 and 4Question 2 of 12 Loading... 3. Explain why carbon dioxide gas, CO₂, is a gas at room temperatureCarbon dioxide has a simple molecular structure with weak intermolecular forces that require little energy to overcomeCarbon dioxide has a giant covalent structure with many strong covalent bonds which require a lot of energy to overcomeCarbon dioxide has a giant covalent structure with many weak covalent bonds which require little energy to overcomeCarbon dioxide has a simple molecular structure with strong intermolecular forces that require a lot of energy to overcomeQuestion 3 of 12 Loading... 4. What is needed to complete this diagram to show the ionic bonding in potassium oxide, K₂O ?1) eight electrons around the potassium (any combination of dots and one crosses) 2) A charge of +2 on the oxide and -1 on the potassium 3) A second potassium ion the same as the first1) eight electrons around the oxide (six dots and two cross) 2) A charge of +2 on the potassium and -1 on the oxide 3) A second potassium ion the same as the first1) eight electrons around the oxide (six dots and two cross) 2) A charge of +1 on the potassium and -2 on the oxide 3) A second potassium ion the same as the first1) eight electrons around the oxide (six dots and two cross) 2) A charge of +1 on the potassium and -2 on the oxide 3) A second oxide ion the same as the firstQuestion 4 of 12 Loading... 5. Explain how the atoms are held together in a hydrogen bromide moleculeA shared pair of electrons is attracted to 2 nucleiA pair of electrons is transferred from bromine to hydrogenA shared pair of electrons is attracted to one nucleusA single electron is transferred from bromine to hydrogenQuestion 5 of 12 Loading... 6. 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 sharing of a pair of electrons between two nucleiThe transfer of electrons from one atom to anotherQuestion 6 of 12 Loading... 7. Why do ionic substance have high melting and boiling points?There are weak intermolecular forces, in a simple molecular structure, which require little energy to overcomeThere is a strong electrostatic attraction between similarly charged ions, in a giant structure, which requires a lot of energy to overcomeThere is a weak electrostatic attraction between oppositely charged ions, in a giant structure, which requires little energy to overcomeThere is a strong electrostatic attraction between oppositely charged ions, in a giant structure, which requires a lot of energy to overcomeQuestion 7 of 12 Loading... 8. Why is the boiling point of a larger molecule higher than that of a smaller molecule?Larger molecules have fewer attractions between them. These take more energy to overcome.Larger molecules have more attractions between them. These take more energy to overcome.Larger molecules have fewer attractions between them. These take less energy to overcome.Larger molecules have more attractions between them. These take less energy to overcome.Question 8 of 12 Loading... 9. When can ionic substances conduct electricity?In any stateNeverOnly when moltenWhen molten or dissolvedQuestion 9 of 12 Loading... 10. Explain, in terms of its structure, why graphite can conduct electricity.Graphite has positive ions which can moveGraphite has delocalised electrons which can moveGraphite has delocalised protons which can moveGraphite has layers which can easily slide over each otherQuestion 10 of 12 Loading... 11. Suggest why buckminsterfullerene, C₆₀, has a low melting point.Buckminsterfullerene has a simple molecular structure with weak intermolecular forces that require little energy to overcomeBuckminsterfullerene has a simple molecular structure with strong intermolecular forces that require a lot of energy to overcomeBuckminsterfullerene has a giant metallic structure with weak forces of attraction between layersBuckminsterfullerene has a giant covalent structure with many strong covalent bonds that need a lot of energy to breakQuestion 11 of 12 Loading... 12. When are ions attracted to each other?When the ions are very smallWhen the ions are the same sizeWhen the ions have the same chargeWhen the ions are oppositely chargedQuestion 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