Paper 2 MS

AA 1

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A-level Chemistry Paper 2 (7405/2): Organic and Physical Chemistry Mark scheme
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22

August 2022

2022/2023

A+
A-level Chemistry Paper 2 (7405/2): Organic and Physical Chemistry Mark scheme 7405 Specimen paper Version 0.5 Question Marking guidance Mark AO Comments 01.1 Consider experiments 1 and 2: [B constant] [A] increases × 3: rate increases by 32 therefore 2nd order with 1 AO3 1a respect to A Consider experiments 2 and 3: [A] increases × 2: rate should increase × 22 but only increases × 2 Therefore, halving [B] halves rate and so 1st order with...
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