Lvl 37 Alchemist
Yup pretty muchEdexcel SNAB ? Our teachers told me recently that a question came up in an exam (not sure if it was a real paper or specimen) where they had to know about acetic orcein and they couldn't get all the marks if they hadn't seen it - or something along those lines. So they might not just be being awkward !
While Edexcel allow you to change the prac so that you get one that works they MUST still learn the one that Edexcel set in their worksheets as this is the version they will set exam questions from so if you change the prac they have to learn to differentiate between the one they did and the one in the textbook