1) Which of the following are NOT the physical properties of salt crystal ? a) Has fixed angle between two adjacent surfaces b) Different crystal have different geometrical shapes c) Same crystal of different sizes have different geometrical shapes d) Has flat surface, straight sides and sharp vertices 2) Acidity increases when the pH value of the acid solution decreases. a) True b) False 3) Which statement is CORRECT about acid ? a) Weak acid produces high concentration of hydrogen ions b) The presence of water enables acid to produce hydroxide ions c) Strong acid ionizes partially in water d) Acid solution conducts electric current 4) Which of the following salts are insoluble in water ?  a) Lead (II) Sulphate, PbSO4 b) Sodium Sulphate, Na2SO4 c) Magnesium Chloride, MgCl2 d) Ammonium Carbonate, (NH4)2CO3 5) What is the process to prepare insoluble salts ? a) Neutralisation reaction b) Recrystallisation c) Double decomposition reaction  d) Reaction between acid and metal carbonate 6) State how the process to test or identify the appearance of oxygen gas, O2. a) Flow the gas produced into limewater b) Insert a glowing wooden splinter into the test tube c) Place a lighted wooden splinter near the mouth of the test tube d) Place a piece of moist blue litmus paper to the mouth of the test tube 7) Alkali that ionises partially in water will have high pH value. a) True b) False 8) What method is used to study the neutralisation reaction between acid and alkali ? a) Evaporation b) Electrolysis c) Titration d) Sublimation 9) Which of the following are NOT related to chemical properties of Alkali ? a) Reaction between alkali and acid produce salt and water b) Reaction between alkali and metal ion produce insoluble metal hydroxide and cation from alkali c) Reaction between alkali and reactive metal produce salt and hydrogen gas  d) Reaction between alkali and ammonium salt produce salt, water and ammonium gas 10) The following anion are needed in anion tests to identify anion in salts, EXCEPT   a) Bromide ion, Br− b) Carbonate ion, CO32− c) Nitrate ion, NO3− d) Sulphate ion, SO42− 11) Which of the following equipment is used for diluting 0.500M NaOH solution to 0.0500M ? a) Measuring cylinder, glass rod, volumetric flask, beaker b) Pipette filler, pipette, volumetric flask, dropper c) Dropper, volumetric flask, measuring cylinder d) Pipette, volumetric flask, pipette filler 12) A factory worker wants to remove the oxide layer on the surface of the steel used to make a body car. Which substance is suitable to be used for that purpose ? a) Sulphur dioxide b) Dilute potassium hydroxide c) Detergent d) Dilute hydrochloric acid 13) Which of the following is CORRECT sequence in preparation of a solution method ? a) II, I, IV, III b) II, III, I, IV c) II, III, IV, I d) II, I, III, IV 14) Which of the following solution will form brown precipitate which is insoluble in excess sodium hydroxide solution ? a) Copper (II) sulphate b) Iron (III) sulphate c) Magnesium sulphate d) Iron (II) sulphate 15) Which of the following substance is a monoprotic acid ? a) Carbonic acid b) Phosphoric acid c) Propanoic acid d) Sulphuric acid

Chemy-Tower Jenga

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