A-Level Chemist Ry 7405/1 Paper 1 Inorganic And Physical Chemistry Mark Scheme June 2021 Version: 1.0 Final

l10A-level CHEMISTRY 7405/1Paper 1 Inorganic and Physical ChemistryMark schemeJune 2021Version: 1.0 FinalChapter: AQA A LEVEL CHEMISTRY PAPER 1 7405-1 2021 MARK SCHEME MSl10*216A74051/MS*lMARK SCHEME - A-LEVEL CHEMISTRY - 7405/1 - JUNE 2021112Mark schemes are prepared by the Lead Assessment Writer and considered, together with the relevantquestions,by a panel of subject teachers. This mark scheme includes any amendments made at the standardisation events which all associates participate in and is the scheme which was used by them inthis examination. The standardisation process ensures that the mark scheme covers the students responses to questions and that every associate understands and applies it in the same correct way.As preparation for standardisation each associate analyses a number of students scripts. Alternativeanswers notalready covered by the mark scheme are discussed and legislated for. If, after the standardisation process, associates encounter unusual answers which have not been raised they arerequired to refer these to the Lead Examiner.It must be stressed that a mark scheme is a working document, in many cases further developed and expanded onthe basis of students reactions to a particular paper. Assumptions about future mark schemes on the basis of one years document should be avoided; whilst the guiding principles of assessment remain