The entire quiz question bank (Double only)! This quiz pulls questions at random from the entire Double-only question-bank Loading... 1. What 2 properties makes esters useful in food flavourings and in perfumes?Esters are viscous and have distinctive tastesEsters are volatile with distinctive tastesEsters are volatile and have distinctive tastesEsters are volatile with distinctive smellsQuestion 1 of 10 Loading... 2. What is the name for this piece of lab equipment?measuring cylindertest tubeboiling tubemeasuring flaskQuestion 2 of 10 Loading... 3. In a flame test, a lilac colour is seen. Give the formula of the cation which is present.Cu²⁺Na⁺Li⁺K⁺Question 3 of 10 Loading... 4. When testing a sample for ions, hydrochloric acid and then barium chloride are added to a sample. A white precipitate forms. What is the name of that precipitate?barium sulfatebarium carbonatebarium bromidebarium chlorideQuestion 4 of 10 Loading... 5. What is meant by the term activation energy?The energy released by the reactionThe energy provided by the catalyst to allow a reaction to proceedThe maximum energy of the final product for it to be stableThe minimum energy that the particles in collision must have if a reaction is going to occurQuestion 5 of 10 Loading... 6. What is meant by the term element?An element is a substance that contains two or more elements chemically joined together in fixed proportionsAn element is a substance made of only one type of atomDifferent substances in the same space, but not chemically combined.A material that melts above 200 ⁰CQuestion 6 of 10 Loading... 7. Is barium nitrate soluble?slightlynoyesQuestion 7 of 10 Loading... 8. What does the following diagram represent?One repeat unit of polyoct-2-eneethylbutylethaneThe polymer oct-3-eneOne repeat unit of polyoct-3-eneQuestion 8 of 10 Loading... 9. Describe how you would test for sulfate ions (SO₄²⁻) and what is the result if they are present?Add nitric acid and see if carbon dioxide bubbles formAdd dilute HCl, followed by silver nitrate (AgNO₃) and see if a white precipitate formsAdd dilute HCl, followed by barium chloride (BaCl₂) and see if a white precipitate formsFlame test. Flame colour is lilacQuestion 9 of 10 Loading... 10. What colour is hydrated copper (II) sulfate?CreamBluePurpleWhiteQuestion 10 of 10 Loading... Related Posts:The entire quiz question bank!Key Calculations quizEquilibria (triple) quizCondensation Polymers quizElectrolysis quizAlcohols & Carboxylic Acids quiz Hydr0Gen2022-03-09T21:20:41+00:00Categories: Uncategorized|Tags: Quiz| Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInTumblrPinterestVkEmail