Topic 1 - Acids and indicators 0.0 / 5 ? ChemistryUnit 1 - Introductory SkillsIGCSEOther Created by: E456Created on: 07-03-17 13:28 What colour does blue litmus paper turn when wetted with acid? red 1 of 7 What is a reliable chemical test for an acid? an indicator 2 of 7 What are the three most important acids studied for IGCSE? hydrochloric acid, sulphuric acid and nitric acid 3 of 7 How acidic is rain? it is slightly acidic 4 of 7 What is acidity measured on? the pH scale 5 of 7 Is a pH of 0 acidic or basic? acidic 6 of 7 Must an indicator be coloured? yes 7 of 7
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