Centre No. Candidate No. Paper Reference(s) Surname Paper Reference Initial(s) 4 4 0 0 4400/3H 3 H Signature Examiner’s use only London Examinations IGCSE Mathematics Paper…

Surname Centre No. Candidate No. Paper Reference(s) Initial(s) Paper Reference Signature 1 3 8 0 1380/1F 1 F Examiner’s use only Edexcel GCSE Mathematics (Linear) – 1380…

Surname Centre No. Candidate No. Paper Reference(s) Initial(s) Paper Reference Signature 1 3 8 0 1380/3H 3 H Examiner’s use only Edexcel GCSE Mathematics (Linear) – 1380…

Unit 4,Topic 3: How Fast? Exam Questions 1. In an experiment designed to find the mechanism of the reaction between a halogenoalkane, RX, and hydroxide ions, the following…

Surname Centre No. Candidate No. Paper Reference(s) Initial(s) Paper Reference Signature 1 3 8 0 1380/3H 3 H Examiner’s use only Edexcel GCSE Mathematics (Linear) – 1380…

Centre No. Candidate No. Surname Paper Reference Initial(s) 4 4 0 0 Paper Reference(s) 3 H Signature Examiner’s use only 4400/3H London Examinations IGCSE Mathematics Paper…

Surname Centre No. Candidate No. Paper Reference(s) Initial(s) Paper Reference Signature 1 3 8 0 1380/3H 3 H Examiner’s use only Edexcel GCSE Mathematics (Linear) – 1380…

1. A top quark has a mass of 171 A B C D 3 × 10–31 3 × 10–28 3 × 10–25 3 × 10–19 GeV c2 . Its mass in kilograms is about (Total 1 mark) 2. A π+ pion is composed…