In a titration, a student placed an alkali in a conical flask.
By mistake, a few drops of methyl orange and a few drops of litmus indicator were both added to the flask.
The student then added acid from a burette until the solution in the flask was acidic.
Predict the colour change that would be observed in the flask.
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.