OCR A LEVEL JUNE 2022 CHEMISTRY A PAPER 2 EXAM QUESTION PAPER

OCR A LEVEL JUNE 2022 CHEMISTRY A PAPER 3 EXAM QUESTION PAPER

OCR AS LEVEL JUNE 2022 CHEMISTRY B PAPER 2 QUESTION PAPER

GCE A LEVEL Chemistry A H432/03: Unified chemistry Mark Scheme for June 2022. Structure and bonding NH3 is (simple) molecular/simple covalent/ /has intermolecular forces AND NH4NO3 is ionic  Comparison of strength Ionic bonds are stronger than intermolecular bonds / forces between molecules OR Ionic bonds need more energy to break than intermolecular bonds  2 AO1.1 ×2 For intermolecular bonds/forces ALLOW hydrogen bonds OR London Forces/induced dipole forces/permanent dipo...

OCR AS LEVEL JUNE 2022 CHEMISTRY A PAPER 2 QUESTION PAPER

OCR A LEVEL JUNE 2022 CHEMISTRY A PAPER 2 EXAM QUESTION PAPER

OCR A LEVEL JUNE 2022 CHEMISTRY A PAPER 3 EXAM QUESTION PAPER

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 ...

OCR A LEVEL JUNE 2022 CHEMISTRY A PAPER 2 EXAM QUESTION PAPER

OCR A LEVEL JUNE 2022 CHEMISTRY A PAPER 3 EXAM QUESTION PAPER