Catalytic converter chemistry igcse questions. students need to be able to answer exam questions.

Catalytic converter chemistry igcse questions CHEMISTRY 0620/31 Paper 3 (Extended) October/November 2012 1 hour 15 minutes Candidates answer on the Question Catalytic converters reduce harmful emissions by converting them into less harmful substances through chemical reactions. The reactions that take place in the catalytic converter include: Oxidation of CO to CO 2: 2CO + O 2 → 2CO 2. 2H 2 O 2 (aq) → 2H 2 O (l) + O 2 (g). 2NO(g) ———–> N 2 (g) + O 2 (g) & 2NO 2 (g) ————> N 2 (g) + 2O 2 (g) Transport and Catalytic Converters. 6. These converters use platinum, palladium, or rhodium as catalysts, facilitating efficient reaction surfaces. The best online community to share tips, ask for help and advice in your IGCSE's and O Level exams! Questions and model answers on Air Quality & Climate for the CIE IGCSE Chemistry: Co-ordinated Sciences (Double Award) syllabus, written by the Chemistry experts at Save My Exams. Questions and model answers on 11. These help reduce the release of toxic gases from the exhaust pipe. Examples of other substances which could Sep 24, 2024 · Author: Alexandra Brennan Expertise: Chemistry Alex studied Biochemistry at Newcastle University before embarking upon a career in teaching. (c) Catalytic converters reduce the pollution from motor vehicles. 2 + 2O. They usually consist of a mixture of finely divided platinum and rhodium supported on a ceramic base; Diagram of a catalyst on an inert support medium in a vehicle catalytic converter Best Exam Help. → N. They contain a series of transition metal catalysts including platinum and rhodium (c) Catalytic converters reduce the pollution from motor vehicles. The resource meets all required specification points for the Edexcel 9-1 GCSE Chemistry course. Platinum and palladium are used in catalytic converters in cars. [1] Oct 22, 2024 · Stewart has been an enthusiastic GCSE, IGCSE, A Level and IB teacher for more than 30 years in the UK as well as overseas, and has also been an examiner for IB and A Level. Their function is to render these exhaust gases harmless. 2 . g. Sep 29, 2024 · Cars are fitted with catalytic converters which form a part of their exhaust systems. uk Page 1 Exothermic and Endothermic Reactions Question Paper Level GCSE Subject Chemistry Exam Board AQA Unit C2 Topic Exothermic and Endothermic Reactions Difficulty Level Gold Level Booklet Question Paper Time Allowed: 94 minutes Score: /94 Nov 29, 2024 · Stewart has been an enthusiastic GCSE, IGCSE, A Level and IB teacher for more than 30 years in the UK as well as overseas, and has also been an examiner for IB and A Level. reduced. This is done through a catalytic converter. loses . Chemists' knowledge of the energy changes and factors affecting reaction rates can be used to predict the best possible conditions to make the most ammonia in the fastest possible time 22 v1 4Y11 Cambridge IGCSE Chemistry– past and specimen paper questions and answers 0620 Cambridge IGCSE Chemistry Specimen Papers (2016) Oxygen (O2) is made in the lab from hydrogen peroxide (H2O2) using manganese(IV) oxide (MnO2) as a catalyst. 2-Unburned hydrocarbons Questions and model answers on Formulae, Functional Groups & Terminology for the Cambridge (CIE) IGCSE Chemistry syllabus, written by the Chemistry experts at Save My Exams. Answer all questions. 4 Redox: Exam Style Questions Paper 4 Prepared By iGCSE Chm Teachers Stewart has been an enthusiastic GCSE, A Level and IB Chemistry teacher for more than 30 years in the UK as well as overseas, and has been an examiner for IB and A Level, also. Syllabus Objectives: CORE: State the composition of clean, dry air as approximately 78% nitrogen, N 2, 21% oxygen, O 2 and the remainder as a mixture of noble gases and carbon dioxide, CO 2 Nov 11, 2014 · Hey guys, just thought I'd make some notes for the upcoming IGCSE Chemistry exams you're stressing out about. To reduce the amount of pollutants released in car exhaust fumes, many cars are now fitted with catalytic converters. Implementation of mandatory catalytic converters in 1995 for the 4 Metro cities, thus reducing pollution further. The number of marks is given in brackets [ ] at the end of each question or part questions. 2 nitrogen & greenhouse gases 11. Carbon monoxide and the nitrogen oxides released through cars’ exhaust fumes pollute the atmosphere; The nitrogen oxides are reduced on the surface of the hot catalyst to form the unreactive and harmless nitrogen gas which is then released from the vehicle’s exhaust pipe into the atmosphere Answer all questions. [4] (ii) Describe the reaction(s) inside the catalytic converter which Aug 20, 2023 · Without catalytic converters, vehicles release hydrocarbons, carbon monoxide, and nitrogen oxide. From 2000, India introduced strict Emission Elite online tutoring from the UK's & US's best tutors. A-Level, IB, AP, GCSE, IGCSE, Oxbridge, Ivy league, university admissions. co. [4] (ii) Describe the reaction(s) inside the catalytic converter which Where the gases are passed through in a catalytic converter. Home; Past Papers. Different catalysts could be used to investigate which is the most effective in decomposing hydrogen peroxide. (i) Name the gas formed by incomplete combustion of the fuel. 1water 11. The large pile of copper is heated and the air is passed from one gas syringe to the other over the hot copper. Written by teachers and examiners, they’re a great way to solidify your understanding of key topics, get instant feedback and identify knowledge gaps. Describe the two reactions that occur in a catalytic converter. CHEMISTRY 0971/42 Paper 4 Theory (Extended) October/November 2019 1 hour 15 minutes Candidates answer on the Question Paper. Nov 4, 2024 · Stewart has been an enthusiastic GCSE, IGCSE, A Level and IB teacher for more than 30 years in the UK as well as overseas, and has also been an examiner for IB and A Level. The emphasis is on health issues arising from burning fuels rather than on global issues such as climate change, which is covered in Module P2: Radiation and life. They need about 15 minutes of the engine running and warming up the exhaust box before they are effective. Nov 25, 2022 · Catalytic removal of NO x and CO. Question Paper 11 Cambridge IGCSE™ CHEMISTRY 0620/23 Paper 2 Multiple Choice (Extended) October/November 2023 45 minutes You must answer on the multiple choice answer sheet. Study with Quizlet and memorise flashcards containing terms like What catalysts do catalytic converters use?, What is the aim of using catalytic converters?, What is the reaction between nitric oxide and carbon monoxide? and others. For more awesome GCSE and A level resources, visit us at www. 2. State two other effects of air pollution which are reduced by using catalytic converters. 1 Catalytic Converters. Their effectiveness is essential (d) Catalytic converters remove oxides of nitrogen as well as carbon monoxide from exhaust gases. Get exam ready with our bank of IGCSE Chemistry exam questions. This has lots of medical consequences. Catalytic converters do not work well at low temperatures . Choose from the Jul 1, 2013 · 6. May 8, 2023 · Review of techniques and investigations in IGCSE Chemistry Catalytic converters remove oxides of nitrogen from car exhausts by oxidation. Cambridge will not enter into discussions about these mark schemes. 1 water & air Jan 23, 2024 · Catalytic removal of nitrogen oxides. Jan 28, 2022 · Catalytic converters. 1 water 11. The following experiments were carried out to investigate the rate of this reaction. or Sep 24, 2024 · Explaining the conditions in the Haber process. ____ Candidates explore environmental and health consequences of certain air pollutants, and options for improving air quality in the future, such as the use of catalytic converters. Dec 23, 2018 · This PowerPoint (with suggested practical tasks) will allow you to teach a range of abilities about catalysts and catalytic converters, including the new material on activation energy and enzymes. honeycombed. They use expensive metals like platinum, palladium and rhodium as the heterogeneous catalyst. A copy of the Periodic Table is printed on page 12. 5 Exam-Style Questions air pollution keywords and phrases: revision study notes for 14-16 school chemistry AQA Edexcel OCR IGCSE/GCSE 9-1 chemistry science topics modules for studying use of catalytic converter to control air pollution, effects of incomplete combustion of fossil fuels, carbon particulates, carbon monoxide poisoning, pollution and harmful effects from May 28, 2020 · Visit www. Cambridge Assessment International Education For more awesome GCSE and A level resources, visit us at www. With nearly 10 years of teaching experience, Alex has had several roles including Chemistry/Science Teacher, Head of Science and Examiner for AQA and Edexcel. Do not use staples, paper clips, glue or correction fluid. CHEMISTRY 0620/43 Paper 4 Theory (Extended) May/June 2017 1 hour 15 minutes Candidates answer on the Question Paper. Trusted by parents, students, and Questions and model answers on Common atmospheric pollutants for the AQA GCSE Chemistry: Combined Science syllabus, written by the Chemistry experts at Save My Exams. It notes there are 40 questions to be answered by choosing the correct option among A, B, C or D on the multiple choice answer sheet. So in order to stop nitrogen oxides from being released, a catalytic converter is placed in exhausts of vehicles. 2-Oxides of nitrogen NO, NO. catalytic . 2 + 4CO. They usually consist of a mixture of finely divided platinum and rhodium supported on a ceramic base. Transport and Catalytic Converters. The Contact Process IGCSE:Chemistry of the environment. Notes are summarised from the IGCSE Chemistry textbook by B Earl and LDR Wilford. Real-world applications of catalysts cover a vast range, from catalytic converters in vehicles that reduce harmful emissions to processes in the chemical industry like the Haber process (making ammonia) or the Contact process (making sulphuric acid) where catalysts play a crucial role in improving the rates and viability of these reactions. They’re designed to match exam-style formats, so you'll feel more prepared for the real thing. These gases are the largest source of ground level ozone, which causes smog and is harmful to plant life. (2). D Oxides of nitrogen are removed from exhaust gases by reduction in a catalytic converter. 1. 3 Catalytic converters convert oxides of nitrogen into nitrogen. At the end of the examination, fasten all your work securely together. coukpge . 2 Naming Organic Compounds for the Cambridge O Level Chemistry syllabus, written by the Chemistry experts at Save My Exams. In the catalytic converter the nitrogen monoxide reacts with carbon monoxide to form nitrogen and carbon dioxide. Catalytic converters. O Level; A Level; IGCSE; Contact  Chemistry - 0620 November - 2020 Question Papers. Catalytic Converters comments and questions about this site or page. 2air view exam questions 11. GCSE Chemistry KS3 Chemistry catalytic actions relating to catalytic converters. converters. oxides of nitrogen The document describes instructions for a 40 question multiple choice chemistry exam for Cambridge IGCSE students. This "honeycomb" is the one that reacts with nitrogen oxides and carbon monoxide to reduce them The gases from the car engine are passed through a catalytic converter. As a long-standing Head of Science, Stewart brings a wealth of experience to creating Topic Questions and revision materials for Save My Exams. 0 . The catalytic converter is fitted at the end of the car exhaust. Questions and model answers on Extraction of Metals for the Cambridge (CIE) IGCSE Chemistry syllabus, written by the Chemistry experts at Save My Exams. 2 The table gives the composition of the atmosphere of four newly discovered planets. They contain platinum and rhodium, which act as catalysts. (1) A cracking B displacement C oxidation D precipitation (b) It is important that the reactions in the catalytic Practice Online iGCSE Chemistry Theory (Extended) :6. The equation should be balanced. (ii) This reaction takes place in a catalytic converter carbon monoxide + oxygen o carbon dioxide This reaction is exothermic. Question 1 Cambridge IGCSE Chemistry 0620 Paper 31, Q1, June 2013 c Catalytic converters reduce the pollution from motor vehicles. Study with Quizlet and memorize flashcards containing terms like Iron, 450°C, 200 atm, Manganese (IV) Oxide, 300°C and more. (a) What type of reaction occurs in the catalytic converter? Put a cross ( ) in the box next to your answer. A catalytic converter is a device fitted into the exhaust system of a car. Two non‑toxic gases are formed. 5 Nitrogen dioxide reacts to produce nitrogen and oxygen in catalytic converters. 2. KayScience. Eugene Lemay, Matthew E. are . Posted 11th November 2014 by Unknown Question A student adds excess large pieces of magnesium carbonate, MgCO 3, to dilute hydrochloric acid, HCl, and measures the volume of carbon dioxide gas, CO 2, given off. The high temperature combustion of fuel (in petrol and diesel engines used in cars and lorries) produces toxic gases in addition to carbon dioxide. B N. 10/10 always The gases from the car engine are passed through a catalytic converter. . by . Complete the equation for this reaction. , fitted to Oct 25, 2024 · Author: Lucy Kirkham Expertise: Head of STEM Lucy has been a passionate Maths teacher for over 12 years, teaching maths across the UK and abroad helping to engage, interest and develop confidence in the subject at all levels. Nov 29, 2024 · Catalytic Converters They contain a series of transition metal catalysts including platinum, palladium and rhodium The metal catalysts are in a honeycomb within the converter to increase the surface area available for reaction Catalytic converters. 2 Oxides: Exam Style Questions Paper 1 Prepared By iGCSE Chm Teachers Sep 1, 2022 · What is a catalytic converter a level chemistry? Catalytic converters change poisonous molecules like carbon monoxide and various nitrogen oxides in car exhausts into more harmless molecules like carbon dioxide and nitrogen. (i) Explain what is meant by the term catalyst. Nitrogen Oxides in Car Engines Nitrogen _____ (NO) and _____ (NO2) are formed when nitrogen and oxygen react in the high pressure and temperature conditions of internal combustion engines and blast furnaces Exhaust gases also contain unburned hydrocarbons and carbon monoxide Cars are fitted with catalytic converters which form a part of their exhaust systems Their function is to render these The number of marks is given in brackets [ ] at the end of each question or part question. Cambridge International Examinations Cambridge International General Certiicate of Secondary Education 1 (a) Catalytic converters in the exhaust systems of cars contain catalysts. State where in the Periodic Table this metal is most likely to be found. 2 + 2CO. A series of free IGCSE Chemistry Lessons (Cambridge IGCSE Chemistry). You will need: Multiple choice answer sheet Soft clean eraser Soft pencil (type B or HB is recommended) INSTRUCTIONS There are forty questions on this paper. Catalytic converters are used to help to minimize the release of these toxic gases. Its primary function is to reduce the level of harmful pollutants that a car emits into the atmosphere. Murphy, H. PMT Questions and model answers on Causes of Atmospheric Pollution for the AQA GCSE Chemistry syllabus, written by the Chemistry experts at Save My Exams. Working as a Head of Department and then Director of Maths, Lucy has advised schools and academy trusts in both Scotland and the East Midlands, where her role was to The exhaust systems of cars are fitted with catalytic converters. What is a Catalytic Converter? Since the early 1990's, car exhausts have been Nov 29, 2024 · Stewart has been an enthusiastic GCSE, IGCSE, A Level and IB teacher for more than 30 years in the UK as well as overseas, and has also been an examiner for IB and A Level. A 1 and 2 B 2 and 3 C 2 only D 3 only 17 Which statement is correct? A Atmospheric carbon dioxide is not a cause of climate change. 0620/21/M/J/17 Oxides of nitrogen, NO. D 2NO. 1 nitrogen & fertilisers 11. On the axes below, draw labelled lines to show the relative energies of the A catalytic converter removes NO by reacting it with a gas formed by incomplete combustion of the fuel. Apr 3, 2020 · Catalytic converters These remove CO, NOx and unburned hydrocarbons (e. 3 Air quality and climate. (e) Nitrogen dioxide is an oxide of nitrogen. The document also May 13, 2024 · This will reduce the efficiency of the catalyst / catalytic converter over time. Small blocks of zinc are attached to ship hulls which are commonly made from steel, an Catalytic converters are fitted to car exhausts to reduce the amount of pollutants released into the atmosphere. 7 Nitrogen dioxide is an oxide of nitrogen. Nov 20, 2024 · Stewart has been an enthusiastic GCSE, IGCSE, A Level and IB teacher for more than 30 years in the UK as well as overseas, and has also been an examiner for IB and A Level. Precious metals (such as platinum) are coated on a honeycomb to provide a large surface area. x. Oct 26, 2024 · Catalytic removal. 2 CO + 2 NO 2 CO2 + N2 C8H18 + 25 NO 8 CO2 + 12½ N2 + 9 H2O Converters have a ceramic honeycomb coated with a thin layer of catalyst metals platinum, palladium, rhodium For more awesome GCSE and A level resources, visit us at w ww. 2 carbon dioxide & methane view exam questions 11. oxides of nitrogen and carbon monoxide less harmful gases to atmosphere catalysts: rhodium, platinum, palladium (i) Describe how carbon monoxide and the oxides of nitrogen are formed in car engines. It was in 1991 that first time emission norms were introduced in India for petrol cars, diesel cars followed in 1992. As a long-standing Head of Department, Stewart brings a wealth of experience to creating Topic Questions and revision materials for Save My Exams. Questions and model answers on Reversible Reactions & Equilibria for the Edexcel IGCSE Chemistry syllabus, written by the Chemistry experts at Save My Exams. cie igcse chemistry revision notes saveamsyvesx. A copy of the Periodic Table is printed on page 16. 1 A catalytic converter removes harmful gases from motor car exhausts. Catalytic converters can also be found in generators, buses, trucks, and trains — almost everything with an internal combustion engine has a In the catalytic converter, carbon monoxide and unburnt hydrocarbons are changed into carbon dioxide and water vapour. Nitrogen dioxide reacts to produce nitrogen and oxygen in catalytic converters. B Carbon monoxide is produced by the complete combustion of petrol. u revision notes topic questions past papers contents: 11. 1water & air 11. A catalytic converter close catalytic converter A device which when fitted to a car exhaust can change harmful nitrogen monoxide and carbon monoxide into nitrogen and carbon dioxide. [2 marks] NO 2 (g) → + O Aqueous hydrogen peroxide decomposes to form water and oxygen. On the axes below, draw labelled lines to show the relative energies of the The gases from the car engine are passed through a catalytic converter. Catalytic converters work by providing a large . Stoltzfus, Patrick Woodward For the experiment question in paper 6 of Physics, you can follow pretty much the same layout as Chemistry and Biology, but since for Physics, the experiment question is 7 marks, you will usually need to add a table to display the information, or a graph, possibly even a conclusion (if asked). 10. These converters play a crucial role in controlling pollution by facilitating chemical reactions that transform carbon monoxide, hydrocarbons, and nitrogen oxides into carbon dioxide, water vapor, and nitrogen. The catalytic converter first reduces the nitrogen oxides to nitrogen. 2 + 4CO → N. planet Questions and model answers on Air Quality & Climate for the Cambridge (CIE) IGCSE Chemistry syllabus, written by the Chemistry experts at Save My Exams. Reduction occurs as the molecules . oxygen. Download Type students need to be able to answer exam questions. The purpose of the catalytic converter which catalyses the reaction between the nitrogen oxide and carbon monoxide, which in turn produces two harmless separate gases, nitrogen and carbon dioxide. The nitrogen oxides released through cars’ exhaust fumes pollute the atmosphere; Many car exhaust systems are therefore fitted with catalytic converters to reduce the pollutants from motor vehicles Cambridge IGCSE® CHEMISTRY 0620/02 Paper 2 Multiple Choice (Extended) For examination from 2020 SPECIMEN PAPER 45 minutes Additional materials: Multiple choice answer sheet Soft clean eraser Soft pencil (type B or HB is recommended) READ THESE INSTRUCTIONS FIRST Write in soft pencil. Emission norms means some rules (which has specified quantity) decided by the govt for control of air pollution . catalytic converter. [4] (ii) Describe the reaction(s) inside the catalytic converter which Oct 25, 2024 · Diagram of a catalyst on an inert support medium in a vehicle catalytic converter. [2] (e) The catalyst in a catalytic converter is made from metal. Catalytic converters are used in car exhaust boxes to reduce air pollution. So, short journeys do almost nothing for pollution reduction Practice Online iGCSE Chemistry (0620) Core:7. Which statement is not correct? A Carbon monoxide is oxidised in the catalytic converter. com for access to 800+ GCSE science videos, quizzes, exam resources AND daily science and maths LIVE TUITION!!! In this video you will l Catalytic activity questions · A-level Chemistry, Catalysts, Redox, question analysis, activation energy Let's work on some questions about catalysts in A-Level Chemistry to consolidate your learning!😏😏 Dec 14, 2021 · •• Describe and explain the presence of oxidesof nitrogen in car engines and their catalyticremoval Chemistry: The Central Science 14th Edition • ISBN: 9780134414232 Bruce Edward Bursten, Catherine J. → 2CO. Extended tier only. → 2NO + 2CO C 2NO. Chemistry: AQA GCSE Higher. The Best Collection of Past Papers. Catalytic converters are devices used in internal combustion engines to reduce harmful emissions by converting toxic gases into less harmful substances. Oct 22, 2024 · Stewart has been an enthusiastic GCSE, IGCSE, A Level and IB teacher for more than 30 years in the UK as well as overseas, and has also been an examiner for IB and A Level. octane, C8H18) from the exhaust gases, turning them into ‘harmless’ CO2, N2 and H2O. This reaction is catalysed by manganese(IV) oxide. 3. Function and Mechanism: Catalytic converters in vehicles reduce NOx emissions by converting NOx back to nitrogen gas (N₂) and oxygen. Aug 21, 2024 · Stewart has been an enthusiastic GCSE, IGCSE, A Level and IB teacher for more than 30 years in the UK as well as overseas, and has also been an examiner for IB and A Level. Mark schemes should be read in conjunction with the question paper and the Principal Examiner Report for Teachers. Sub Topic:10. uk/ Air Question Paper Level O Level Subject Chemistry Exam Board Cambridge International Examinations Topic Atmosphere and Environment Sub-Topic Air Booklet Question Paper Time Allowed: 37 minutes Score: /31 Percentage: /100 A catalytic converter is a device fitted in car exhaust systems that contains transition metal catalysts to render pollutant gases harmless. savemyexams. to N. u12pd. surface area with metal 1 (a) Catalytic converters in the exhaust systems of cars contain catalysts. What is a Catalytic Converter? Since the early 1990's, car exhausts have been Sep 24, 2024 · Stewart has been an enthusiastic GCSE, IGCSE, A Level and IB teacher for more than 30 years in the UK as well as overseas, and has also been an examiner for IB and A Level. Car exhaust fumes contain gases such as:-Carbon monoxide CO. Catalytic Removal in Exhaust Gases 2. Which reaction does not take place in a catalytic converter? A 2CO + O. B Atmospheric methane is produced by respiration. uk Page 1 Rates of Reaction Question Paper Level GCSE Subject Chemistry Exam Board AQA Unit C2 Topic Rates of Reaction Difficulty Level Gold Level Booklet Question Paper Time Allowed: 84 minutes Score: /84 Percentage: /100 The percentage of oxygen in air can be determined by the following experiment. It provides details such as the exam date, duration, materials required, and instructions for completing and submitting the exam. The number of marks is given in brackets [ ] at the end of each question or part question. Catalytic converters remove oxides of nitrogen from car exhausts by reduction. No Additional Materials are required. The gas syringe contains 50 cm 3 of air. C Burning natural gas decreases the level of carbon dioxide in the atmosphere. Catalytic converters are fitted to car exhausts to reduce the amount of pollutants released into the atmosphere. qeik humyhr uao zuepcv eueuyi jqcqe ewmk mmuhkn tuq czspu