Electrolysis quiz Loading... 1. What is the formula of the chloride ion?Cl¹⁻Cl²⁻Cl⁷⁺Cl¹⁺Question 1 of 11 Loading... 2. Suggest why a small amount of dilute acid is added to water before it is electrolysedto remove an oxide coating from the electrodesto slow down the rate of electrolysisto lower the pHto increase electrical conductivityQuestion 2 of 11 Loading... 3. What does the word malleable mean?Able to carry currentAble to be drawn into a wireWill break or crack under pressureAble to be hammered or pressed into shape without breaking or crackingQuestion 3 of 11 Loading... 4. For what purpose would this equipment be used for in the lab?Testing the electrophoresis of a gel melted to liquid stateThe electrolysis of a solutionThe electrolysis of a molten ionic solultionTesting the electrical conductivity of ions in solutionQuestion 4 of 11 Loading... 5. What are positive ions called?electronsanionscations (ca+ions)protonsQuestion 5 of 11 Loading... 6. Explain what is meant by electric currentThe rate of flow of charged particles (e.g. of electrons or ions)The rate of flow of electrons onlyThe rate of flow of elephantsThe rate of flow of ions onlyQuestion 6 of 11 Loading... 7. What do we call it when an atom gains electrons?electrificationionisationreductionoxidationQuestion 7 of 11 Loading... 8. Describe the structure of metalsA giant random structure of positive metal ions surrounded by a sea of delocalised electronsA simple regular structure of positive metal ions surrounded by a sea of delocalised electronsA giant regular structure of positive metal ions surrounded by a sea of delocalised electronsA simple random structure of positive metal ions surrounded by a sea of delocalised electronsQuestion 8 of 11 Loading... 9. Why do ionic compounds conduct electricity only when molten or in solution?When solid the electrons are held in place. When molten or in solution the electrons are free to moveWhen solid the ions are arranged regularly. When molten or in solution the ions are arranged irregularlyWhen solid the ions are free to move. When molten or in solution the ions are held in placeWhen solid the ions are held in place. When molten or in solution the ions are free to moveQuestion 9 of 11 Loading... 10. Do ionic substances conduct electricity?Only when moltenYes, ionic substances always conduct electricityNot when solid, but they do when either molten or in solutionNo, ionic substances never conduct electricityQuestion 10 of 11 Loading... 11. Why do covalent compounds (e.g H₂O) not conduct electricity?There is a sea of delocalised electrons that are free to moveThere are charged particles that are free to moveThere are no charged particles that are free to moveThere are weak intermolecular forces that require little energy to breakQuestion 11 of 11 Loading... Related Posts:The entire quiz question bank!The entire quiz question bank (Double only)!Key Calculations quizEquilibria (triple) quizCondensation Polymers quizAlcohols & Carboxylic Acids quiz Hydr0Gen2020-02-16T17:18:38+00:00Categories: Uncategorized|Tags: Quiz, Topic: Electrolysis| Share This Story, Choose Your Platform! FacebookXRedditLinkedInTumblrPinterestVkEmail
