OCR GCE AS Level Chemistry A H032/01: Breadth in chemistry Mark Scheme for June 2022. (Electrostatic) attraction between oppositely charged OR + and – ions  1 AO1.1 ×1 Attraction is essential IGNORE references to metal and non-metal Mark SchemeJune 2022 20 (ii) Mg2+ shown alternately in FOUR circles  S 2– shown alternately in FOUR circles  2 AO1.2 ×2 ALLOW labels if seen outside circles provided it clear which circle the label applies to ALLOW 1 mark for Mg AND S s...

OCR GCE AS Level Chemistry A H032/01: Breadth in chemistry Mark Scheme for June 2022. OCR GCE AS Level Chemistry A H032/01: Breadth in chemistry Mark Scheme for June 2022

GCE AS Level Chemistry A H032/01: Breadth in chemistry Mark Scheme for June 2022. ANNOTATE ANSWER WITH TICKS AND CROSSES 1st curly arrow (from ANY alkene) Curly arrow from double bond to Br of Br–Br  DO NOT ALLOW partial charge on C=C 2nd curly arrow Correct dipole on Br–Br AND curly arrow for breaking of Br–Br bond  5 AO1.2 AO1.2 For curly arrows, ALLOW straight or snake-like arrows and small gaps (see examples): 1st curly arrow must • go to a Br atom of Br–Br AND ...

A summary of the knowledge required for 'The Halogens' topic in module 3 of the Chemistry OCR A specification. Written using textbooks and classnotes to cover all of the learning outcomes required from the specification for this topic.

This comprehensive set of notes for the new OCR A level chemistry course includes everything you need to ace the exams and achieve a top grade. They're short, sharp and clearly structured, covering each point on the specification with text, equations and diagrams where appropriate. The new course is tough, but these notes will help you nail it!