SASS Chem Atmospheric Pollutants

Page 1 ST ANDREW’S SECONDARY SCHOOL NAME CLASS DATE CHEMISTRY 19.2 Atmospheric Pollutants THE ATMOSPHERE AND ENVIRONMENT Assessment for Learning 1 Which gas is not formed when coal burns? A Carbon dioxide B Carbon monoxide C Methane D Sulfur dioxide 2 Which problem is not caused by acid rain? A Breathing difficulties B Dying trees C Erosion of statues D Lowered pH of lakes 3 Below are two statements about sulfur dioxide. 1 Sulfur dioxide is an acidic oxide and it is formed when fossil fuels burn. 2 Sulfur dioxide is one of the gases in air and is responsible for acid rain. Which is correct? A Both statements are correct and statement 1 explains statement 2. B Both statements are correct but statement 1 does not explain statement 2. C Statement 1 is correct but statement 2 is incorrect. D Statement 2 is correct but statement 1 is incorrect. 4 Which process does not increase global warming? A Burning fossil fuels B Cattle farming C Decomposition of organic waste D Growing crops such as sugar cane 5 Which pollutant gas cannot be produced by the combustion of fossil fuels? A Carbon monoxide B Methane C Nitrogen dioxide D Sulfur dioxide

Page 2 6 Carbon dioxide and methane are both greenhouse gases which contribute to climate change. Which statement explains how greenhouse gases contribute to climate change? A They absorb heat radiation from the Earth. B They absorb heat radiation from the Sun. C They cause acid rain. D They reflect heat radiation from the Earth. 7 Carbon monoxide is an atmospheric pollutant. Why is carbon monoxide considered to be an atmospheric pollutant? A It causes climate change. B It causes the corrosion of buildings. C It is a significant greenhouse gas. D It is poisonous. 8 Which of the following statements about sulfur dioxide are correct? 1 It dissolves in water to produce a solution with a pH of less than 7. 2 It is used as a food preservative. 3 It changes potassium permanganate from colourless to purple. 4 It is produced by the combustion of sulfur-containing fossil fuels. A 1, 2 and 3 B 1, 2 and 4 C 1, 3 and 4 D 2, 3 and 4 9 Which row showing an atmospheric pollutant and its major source is not correct? Atmospheric pollutant Major source A Carbon monoxide Complete combustion of carbon fuels B Oxides of nitrogen Car engines C Sulfur dioxide Combustion of sulfur-containing fossil fuels D Unburned hydrocarbons Car engines 10 Some atmospheric pollutants are listed. 1 Methane 2 Nitrogen dioxide 3 Sulfur dioxide 4 Unburned hydrocarbons Which substances could be removed by reacting with limestone? A 1 and 2 B 1 and 4 C 2 and 3 D 3 and 4