Edexcel IGCSE Chemistry Double Award Revision
A guide to the Edexcel IGCSE Chemistry Double Award Syllabus for 2020
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Tuesday, 5 July 2016
4.1 describe the use of the indictors litmus, phenolphthalein and methyl orange to distinguish between acidic and alkaline solutions
4.1 •
Indicator
Acid Colour
Alkali Colour
•Litmus Paper
•Red
•Blue
•Methyl Orange
•Red
•Yellow
•Phenolphthalein
•Colourless
•Pink
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