Key Reactions quiz Loading... 1. State the colour of litmus in acidic and alkaline solutionsacidic = pink alkali = colourless acidic = colourless alkali = pinkacidic = blue alkali = red acidic = red alkali = blueQuestion 1 of 14 Loading... 2. hydrochloric acid + magnesium →hydrochloric acid + magnesium → magnesium hydrochloride + hydrogenhydrochloric acid + magnesium → magnesium chloride + waterhydrochloric acid + magnesium → magnesium chloride + hydrogenhydrochloric acid + magnesium → magnesium hydrochloride + waterQuestion 2 of 14 Loading... 3. With universal indicator, what is the pH of a green solution?8-1012-147 (neutral)0-3Question 3 of 14 Loading... 4. What is the universal indicator colour of a strongly alkali solution?GreenRedBluePurpleQuestion 4 of 14 Loading... 5. What is an acid?An acid is a corrosive substanceAn acid is a green solutionAn acid is a source of hydrogen ions, H⁺An acid is a compound that reacts with metalsQuestion 5 of 14 Loading... 6. What is the formula for sodium chloride?NaCl₂Na₂Cl₂NaClNa₂ClQuestion 6 of 14 Loading... 7. What is an alkali compared to a base?Alkalis are bases that are soluble in waterBoth alkalis and bases have pH greater than 7 but only alkalis are corrosiveAlkalis are anything with a pH above 7. Bases are only metal oxidesAlkalis have higher pHs than basesQuestion 7 of 14 Loading... 8. State the formula for the lead (II) ionPb²⁻Pb³⁻Pb²⁺Pb³⁺Question 8 of 14 Loading... 9. How can metal carbonates be used to produce carbon dioxide?Reacting with acid releases carbon dioxideReacting with more metal leaves the metal oxide, releasing carbon dioxideBurning them in air releases carbon dioxideThemal Decomposition: when metal carbonates are heated, they break down releasing carbon dioxide. Alternatively, the carbonate can be added to an acid.Question 9 of 14 Loading... 10. What do each of the following state symbols represent: (s), (l), (g), (aq)(l) - solid. (g) - liquid. (s) - gas. (aq) - aqueous (in solution)(s) - solution. (l) - liquid. (g) - gas. (aq) - water(s) - solid. (l) - liquid. (g) - gas. (aq) - water(s) - solid. (l) - liquid. (g) - gas. (aq) - aqueous (in solution)Question 10 of 14 Loading... 11. What happens if a large amount of hydrogen is burnt?It burns with a sooty flameCarbon dioxide is producedExplosionSqueaky popQuestion 11 of 14 Loading... 12. What is a base?A substance which can neutralise an acid, forming salt and water onlyA source of hydroxide ions, OH⁻A compound that reacts with an acid to form hydrogenAn unreactive form of an alkali that is used to store itQuestion 12 of 14 Loading... 13. In the test of a gas, a lit splint gives a squeaky pop. What is the gas?HydrogenChlorineCarbon dioxideOxygenQuestion 13 of 14 Loading... 14. Are non-metal oxides acidic or basic?AcidicNeutralDepends on conditionsBasicQuestion 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! FacebookXRedditLinkedInTumblrPinterestVkEmail