5) METALS 1. The diagram shows an electric heater. Which method would be used to plate the chromium on to the steel? A alloying B electrolysis C galvanizing D oxidation 2. The table shows some properties of four materials. Which of these materials are most suitable to make the pins and the case of an electric plug? Pins Case A W X B X Z C Y W D Z Y 3. The following are all made from metals. Which items are made from stainless steel? A aircraft bodies B drink cans C knives and forks D motor car bodies 4. Which substance reacts with calcium to form a salt? A hydrochloric acid B oxygen C sodium hydroxide D The proton numbers of four elements are shown. 5. Which element is a metal? 6. Zinc reacts with steam to form zinc oxide and hydrogen. Zn + H2O ZnO + H2
5) METALS 1. The diagram shows an electric heater. Which method would be used to plate the chromium on to the steel? A alloying B electrolysis C galvanizing D oxidation 2. The table shows some properties of four materials. Which of these materials are most suitable to make the pins and the case of an electric plug? Pins Case A W X B X Z C Y W D Z Y 3. The following are all made from metals. Which items are made from stainless steel? A aircraft bodies B drink cans C knives and forks D motor car bodies 4. Which substance reacts with calcium to form a salt? A hydrochloric acid B oxygen C sodium hydroxide D 5. The proton numbers of four elements are shown. Which element is a metal? 6. Zinc reacts with steam to form zinc oxide and hydrogen. Zn + H2O ZnO + H2
paper_1_selected_questions.docx