An environmental scientist is carrying out an investigation to determine the specific pH values of several freshwater stream samples to assess the impact of acid mine drainage.
Explain why blue litmus paper would not be a suitable indicator to use in this investigation.
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.
