AQA JUNE 2022 CHEMISTRY A LEVEL 7405 PAPER 3 MARKSCHEME

AQA JUNE 2022 CHEMISTRY A LEVEL 7405 PAPER 3 MARKSCHEME AS and A-Level Chemistry Mark Scheme Instructions for Examiners 1. General The mark scheme for each question shows:  the marks available for each part of the question  the total marks available for the question  the typical answer or answers which are expected  extra information to help the examiner make his or her judgement and help to delineate what is acceptable or not worthy of credit or, in discursive answers, to give an overview of the area in which a mark or marks may be awarded. The extra information in the ‘Comments’ column is aligned to the appropriate answer in the left- hand part of the mark scheme and should only be applied to that item in the mark scheme.