A student performs a neutralisation reaction. They add a few drops of phenolphthalein indicator to dilute hydrochloric acid in a conical flask. Sodium hydroxide solution is then added slowly from a burette until the mixture has just turned alkali at the endpoint.
State the colour change of the phenolphthalein during this reaction.
Practise Edexcel GCSE Chemistry Acids with exam-style questions for Foundation and Higher tier. 276 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
