A food safety technician needs to check the pH of the preservation liquid in a jar of pickled cucumbers to ensure it is sufficiently acidic to prevent bacterial growth.
State one piece of equipment or substance that can be used to measure the pH of this liquid.
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.
