Hello! So i have just started my AS Chem and have been told to self teach the green chemistry topic this weekend. So, i've made my notes but now I want to practice past papers on this topic. What i usually do is print questions off from that topic only but I don't know how to navigate. When I go onto edexcels website to find the past papers, there are two options of unit two paper: Paper 1 and Paper 1R. Are both of these relevant ? Which one do i need to be pulling questions from?
Thanks in advance