A solid organic compound can be purified by recrystallisation. Which statement(s) about recrystallisation is/are true? 1 The organic compound is more soluble in hot solvent. 2 The hot solution is cooled before the purified organic compound is collected. 3 The melting point of the purified organic compound is lower than the impure compound. A 1, 2 and 3 B Only 1 and 2 C Only 2 and 3 D Only 1 Your answer [1] 2. When are insoluble impurities removed during recrystallisation? A when the hot solution...

© OCR 2021 H032/01 [601/5256/4] DC (…) Turn over AS Level Chemistry A H032/01 Breadth in chemistry Sample Question Paper Date – Morning/Afternoon Version 2.1 Time allowed: 1 hour 30 minutes You must have: • the Data Sheet for Chemistry A You may use: • a scientific or graphical calculator * 0 0 0 0 0 0 * First name Last name Centre number Candidate number INSTRUCTIONS • Use black ink. You may use an HB pencil for graphs and diagrams. • Complete the boxes above...

PMT Oxford Cambridge and RSA AS Level Chemistry A H032/02 Depth in Chemistry Friday 25 May 2019 – Morning Time allowed: 1 hour 30 minutes * H 0 3 2 0 2 * INSTRUCTIONS • Use black ink. HB pencil may be used for graphs and diagrams. • Complete the boxes above with your name, centre number and candidate number. • Answer all the questions. • Write your answer to each question in the space provided. If additional answer space is required, you should use the lined page(s) at the e...

OCR A Level Chemistry A (H432) Chemistry B (H433) PAG 6: Synthesis of an organic solid Practice Exam Questions and Mark Scheme This resource includes exam questions from both Chemistry A and Chemistry B. It is not designed as a topic test but is instead intended as a document to support the teaching and learning of Module 1 – Development of practical skills in chemistry. 1. A solid organic compound can be purified by recrystallisation. Which statement(s) about recrystallisation is/ar...

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A solid organic compound can be purified by recrystallisation. Which statement(s) about recrystallisation is/are true? 1 The organic compound is more soluble in hot solvent. 2 The hot solution is cooled before the purified organic compound is collected. 3 The melting point of the purified organic compound is lower than the impure compound. A 1, 2 and 3 B Only 1 and 2 C Only 2 and 3 D Only 1 Your answer [1] 2. When are insoluble impurities removed during recrystallisation? A when the hot solution...

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