Key Reactions quiz Loading... 1. State the colour of methyl orange in acidic and alkaline solutionsacidic = orange alkali = yellowacidic = yellow alkali = redacidic = red alkali = yellowacidic = red alkali = orangeQuestion 1 of 14 Loading... 2. What is the pH of a strong alkali?4-70-311-148-10Question 2 of 14 Loading... 3. What is the universal indicator colour of a pH 8-10 solution?YellowBlueRedGreenQuestion 3 of 14 Loading... 4. What is an acid?An acid is a green solutionAn acid is a corrosive substanceAn acid is a compound that reacts with metalsAn acid is a source of hydrogen ions, H⁺Question 4 of 14 Loading... 5. Describe the test for hydrogen gasRelights a glowing splintUse a lit splint to see if the gas popsTurns moist litmus paper white (bleaches)Turns damp red litmus paper blueQuestion 5 of 14 Loading... 6. Are metal oxides acidic or basic?BasicDepends on conditionsAcidicNeutralQuestion 6 of 14 Loading... 7. If copper chloride has the formula CuCl₂, what is the formula of the copper ion?Cu⁺Cu²⁺Cu⁻Cu²⁻Question 7 of 14 Loading... 8. Are carbon dioxide and sulfur dioxide acidic or basic?Sulfur dioxide is acidic but carbon dioxide is basicBoth are acidic as carbon and sulfur are non-metalsBoth are basic as carbon and sulfur are non-metalsCarbon dioxide is acidic but sulfur dioxide is basicQuestion 8 of 14 Loading... 9. Balance the equation for the reaction: ___ HCl(aq) + ___ MnO₂(s) → ___MnCl₂(aq) + ___H₂O(l) + ___ Cl₂(g)4 HCl(aq) + MnO₂(s) → MnCl₂(aq) + 2H₂O(l) + Cl₂(g)6 HCl(aq) + MnO₂(s) → MnCl₂(aq) + 2H₂O(l) + 2 Cl₂(g)2 HCl(aq) + MnO₂(s) → MnCl₂(aq) + H₂O(l) + Cl₂(g)4 HCl(aq) + 2 MnO₂(s) → 2 MnCl₂(aq) + 2H₂O(l) + Cl₂(g)Question 9 of 14 Loading... 10. Is magnesium oxide acidic or basic?Depends on the conditionsNeutral AcidicBasicQuestion 10 of 14 Loading... 11. What is a base?A substance which can neutralise an acid, forming salt and water onlyAn unreactive form of an alkali that is used to store itA compound that reacts with an acid to form hydrogenA source of hydroxide ions, OH⁻Question 11 of 14 Loading... 12. How can metal carbonates be used to produce carbon dioxide?Burning them in air releases carbon dioxideReacting with more metal leaves the metal oxide, releasing carbon dioxideThemal Decomposition: when metal carbonates are heated, they break down releasing carbon dioxide. Alternatively, the carbonate can be added to an acid.Reacting with acid releases carbon dioxideQuestion 12 of 14 Loading... 13. What is the formula for aluminium sulfide?Al₃(SO₄)₂Al₂(SO₄)₃Al₂S₃Al₃S₂Question 13 of 14 Loading... 14. hydrochloric acid + magnesium →hydrochloric acid + magnesium → magnesium hydrochloride + hydrogenhydrochloric acid + magnesium → magnesium chloride + waterhydrochloric acid + magnesium → magnesium chloride + hydrogenhydrochloric acid + magnesium → magnesium hydrochloride + waterQuestion 14 of 14 Loading... Related Posts:The entire quiz question bank!The entire quiz question bank (Double only)!Key Calculations quizEquilibria (triple) quizCondensation Polymers quizElectrolysis quiz Hydr0Gen2020-02-16T16:28:50+00:00Categories: Uncategorized|Tags: Quiz, Topic: Key Reactions| Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInTumblrPinterestVkEmail
