Chemical Olympiad 2014 Tie #1 2014 1 Tie #1 South Wales West Local Section Round 1 INDIVIDUAL ROUND Read & Learn the Given Reduced Periodic Table You are given a summary form of the Periodic Table and two minutes in which to try and remember the relevant points. The Table will then be collected and questions are specifically related to the content of the Table you have just seen. CAPTAIN WHO WON THE TOSS TO DECIDE WHICH TEAM GOES FIRST YEAR 8/9 1 2 YEAR 9 YEAR 10 On the top of the handout it stated Reduced Version of ………what? What is the name given to the elements that are in a row at the top of the Periodic Table? 1 What is the name given to the row of elements in the middle of the Table? 2 What was the name given to the four elements at the bottom of this Table? 1 What type of elements were listed in Group 1 of the given Table? 2 What type of elements appeared below He in the givenTable? YEAR 11 1 What element had (a) the highest atomic number and give (b) a typical property of that element? 2 What element appeared (a) at the bottom of Group 2 and give (b) a typical property of the element? Read out the scores 1 MENDELEEV Or PERIODIC TABLE FIRST PERIOD TRANSITION ELEMENTS ACTINIDES METALS (ALKALI) GASES (INERT OR NOBLE) (a)URANIUM (b) e.g.Radioactivity (a) RADIUM . (b) e.g. Radioactive? Tie #1 2014 Chemical Olympiad 2014 2 Tie #1 South Wales West Local Section Round 2 BUZZER ROUND Some common sounding words have the symbols of elements contained in them. As an example the word ‘Sip’ could represent three elements – Sulphur, Iodine and Phosphorus The letters in the word NO are SYMBOLS for YEAR which elements? 8/9 NITROGEN and OXYGEN The letters in the word CaN are SYMBOLS for YEAR which two elements? 9 CALCIUM AND NITROGEN The letters in the word LIFE are SYMBOLS for YEAR which two metals? 10 LITHIUM AND IRON (Not FLUORINE) The letters in the word KNIFE are SYMBOLS for YEAR which three metals? POTASSIUM, 11 NICKEL & IRON Read out the Scores 2 Chemical Olympiad 2014 Tie #1 2014 3 Tie #1 South Wales West Local Section Round 3 Team Progression Round This is a team round and written answers will be received by the question master from the captain of each team. Each team can go on until they have the correct answer. (These clues require a chemical name as an answer) Clue 1 It is listed in chemical catalogues as corrosive, yet we use it in our diet. Clue 2 It is used commercially as a freezing point depressant. ( 6 points) Clue 3 Electrolysis in the molten state yields chlorine gas and a well known alkali. (4 points) Clue 4 It is mined from vast deposits in Cheshire, and also can be recovered from sea-water. (2 points) Clue 5 In a fish and chips take-away you would be able to sprinkle it together with some vinegar. (1 point) Answer Read out the scores 3 SODIUM CHLORIDE Chemical Olympiad 2014 Tie #1 2014 4 Tie #1 South Wales West Local Section Round 4 INDIVIDUAL ROUND Who wants to be a millionaire? The idea for this light-hearted round comes from the TV programme, but there are no cash prizes to be won! You will be asked a question and given 4 possible answers, only one of which is correct. For a correct answer you get 2 points. If you have doubts, you may go 50:50 or ask a friend (any specified individual in your team) in which case a correct answer wins only 1 point. If a wrong answer is given, the question passes to the opposing team who will NOT be allowed a life line, but will be given one point for a correct answer. CAPTAIN WHO LOST THE TOSS TO DECIDE WHICH TEAM GOES FIRST What do the initials IR signify? YEAR 1 8/9 INTEREST RATE IN REVERSE INFRA RED INTRA REGULAR INFRA RED What do the initials PPM signify? 2 YEAR 9 1 2 PERSONAL PRIVATE MONITOR PARTS PER MILLION PERFECT PIXEL MATCH PLEASANT PIZZA MEAL PARTS PER MILLION What do the initials SI signify? SYSTEM INTERNATIONALE SOLAR INITIATIVE SCIENTIFIC INSTRUMENT SOLAR IONISATION What do the initials UHF signify? UNDER HYDROGEN FLUORIDE ULTRA HIGH FREQUENCY ULTRA HIGH FINANCE ULTIMATE HAIR FASHIONS 4 SYSTEM INTERNATIONALE ULTRA HIGH FREQUENCY Chemical Olympiad 2014 Tie #1 2014 5 Tie #1 South Wales West Local Section Round 4 continued YEAR 10 1 2 YEAR 11 What do the initials LED signify? LIGHT ENHANCED DISPLAY LIGHT EMITTING DIODE LITTLE EMISSION DETECTED LIFE ENHANCEMENT DRUG What do the initials LCD signify? LIQUID CRYSTAL DISPLAY LOW CALORIE DIET LIGHT COLOUR DENSITY LEFT CENTRE DEMOCRACY What do the initials NMR signify? 1 LIGHT EMITTING DIODE NUCLEAR MOLECULAR RATE NON MASS RATIO NUCLEAR MAGNETIC RESONANCE NON MAGNETIC RESPONSE LIQUID CRYSTAL DISPLAY NUCLEAR MAGNETIC RESONANCE What do the initials MRI signify? 2 MASS RATIO INDEX MAGNETIC RESONANCE IMAGING MATRIX RESPONSE INITIATIVE MODERN REFRACTIVE INDEX Read out the scores 5 MAGNETIC RESONANCE IMAGING Chemical Olympiad 2014 Tie #1 2014 6 Tie #1 South Wales West Local Section Round 5 BUZZER ROUND A ‘Blockbuster’ round in which all the answers start with A What ‘A’ is a colourless mixture of nitrogen, YEAR oxygen and carbon dioxide? 8/9 What ‘A’ is the most common metal in the YEAR Earth’s crust? 9 What ‘A’ is a pain-killing drug, part of which can YEAR be extracted from willow leaves, and known in 10 chemistry as acetyl salicylic acid. What ‘A’ is a suspension of a liquid in a gas, and YEAR used extensively in sprays. 11 Read out the Scores 6 AIR ALUMINIUM ASPIRIN AEROSOL Chemical Olympiad 2014 Tie #1 2014 7 Tie #1 South Wales West Local Section ROUND 6 Individual Round A ‘true value’ round, where you must choose the right ‘quantities’ as answers. CAPTAIN WHO WON THE TOSS TO DECIDE WHICH TEAM GOES FIRST YEAR8/9 1 A litre of hydrogen is:(a) heavier than 1 litre of oxygen (b) lighter than all other gases (c) heavier than 1litre of helium 2 (b) lighter than all other gases 100cm3 of mercury is:- (c) heavier than 100cm3 of water 3 (a) the same mass as 100cm of water (b) lighter than 100cm3 of petrol (c) heavier than 100cm3 of water YEAR 9 1 A good wine would be expected to have the following % of ethanol in it:(a) 5% 2 (b) 60% (c) 13% Good quality vinegar would be expected to have the following % of ethanoic acid in it:(a) 40% (b) 15% 7 (c) 13% (c) 5% (c) 5% Chemical Olympiad 2014 Tie #1 2014 8 Tie #1 South Wales West Local Section Round 6 continued YEAR 10 1 Spraying roads with salt solution prevents ice from forming. What would be the ideal freezing point temperature to aim for? (a) -2ºC (b) - 4ºC (c) -10ºC 2 In the distillation of petroleum from crude oil, petrol would be obtained in the fraction boiling at :(a)10 to 20°C YEAR 11 1 (c) 160 to 250°C In the Haber process to make ammonia the constituent gases (nitogen and hydrogen) need to be in the ratio:(a) 1:6 2 (b) 35 to 100°C (b) 1:3 (b) 1:2 (c) 2:1 Read out the scores 8 (b) 35 to 100°C (b) 1:3 (c) 1:5 In the electrolysis of aqueous sodium chloride, hydrogen and chlorine gases are generated in the ratio of :(a) 1:1 (c) –10°C (a) 1:1 Chemical Olympiad 2014 Tie #1 2014 9 Tie #1 South Wales West Local Section Round 7 INDIVIDUAL ROUND Definitions Round. What is being defined? CAPTAIN WHO LOST THE TOSS TO DECIDE WHICH TEAM GOES FIRST YEAR 8/9 1 2 YEAR 9 YEAR 10 YEAR 11 A gas that is required for photosynthesis A gas to fill a balloon that will then rise in air CARBON DIOXIDE HYDROGEN OR HELIUM 1 The red pigment that is found in red blood corpuscles. 2 The hormone which is produced in the body to overcome excess blood sugar and prevent diabetes. INSULIN 1 An isotope of hydrogen having one proton and 2 neutrons in its nucleus. TRITIUM 2 An isotope of hydrogen found in heavy water. 1 It is the main component of natural gas, and is responsible in part for the greenhouse effect. 2 A gas evolved in volcanoes, and contributes to acid rain. Read out the scores 9 HAEMOGLOBIN DEUTERIUM METHANE SULPHUR DIOXIDE (or H2S)? Chemical Olympiad 2014 Tie #1 2014 10 Tie #1 South Wales West Local Section Round 8 BUZZER ROUND CHEMISTRY AND THE CAR EACH QUESTION CARRIES TWO POINTS. In addition there is a challenging question which carries one bonus point. The winner of the initial two points may confer with his team to answer it.. YEAR 8/9 YEAR 9 YEAR 10 In the majority of cars what liquid is used to control the temperature of the engine to below 100°C? ………………………………………………………………………. (Bonus to winning team who can confer, for 1 point – what is added to the radiator to stop water freezing?) WATER ……………….. Antifreeze or ethylene glycol Where in a car would you find lead and sulphuric acid? ………………………………………………………………………. (Bonus to winning team who can confer, for 1 point – what is the product of reacting lead with sulphuric acid?) BATTERY ……………….. Where in a car would you find Palladium? EXHAUST SYSTEM Lead Sulphate ………………………………………………………………………. ……………….. (Bonus to winning team who can confer, for 1 point Catalyst – what is the role of Palladium in the exhaust system) YEAR 11 Where in a car would you find a source of hydrocarbons? FUEL TANK /SYSTEM ………………………………………………………………………. ………………... (Bonus to winning team who can confer, for 1 point – what is the name given to a hydrocarbon with 4 carbons) Butane Read out the Final scores 10 Tie #1 2014 Chemical Olympiad 2014 11 Tie #1 South Wales West Local Section TIE BREAKER QUESTION - ALL Hands on the Buzzer What was the Scandinavian country of birth of Alfred Nobel? SWEDEN 11