Breadth in chemistry - Study guides, Class notes & Summaries

OCR AS Level Chemistry A H032/01 Breadth in chemistry Question paper And Mark Scheme for June 2023

2 OCR 2023 SECTION A You should spend a maximum of 25 minutes on this section. Write your answer to each question in the box provided. 1 Which statement explains the trend in boiling points down the halogens group? A Covalent bonds become stronger. B Induced dipole–dipole interactions (London forces) become stronger. C Ionic bonds become stronger. D Permanent dipole–dipole interactions become stronger. Your answer [1] 2 A hydrocarbon contains 85.71% carbon by mass. What is the em...

This is the final mark scheme

This is the official question paper

This is the final mark scheme

Potable water  Any two from: Distillation  Water evaporated/boiled  (Water vapour) then condensed  OR Any two from: Membrane filtration  Salty water forced through membrane at high pressure  Water molecules pass but dissolved salts don’t  To kill micro-organisms/bacteria  Toxic / poisonous 

H032/01: Breadth in chemistry Mark Scheme June 2022. OCR (Oxford Cambridge and RSA) is a leading UK awarding body, providing a wide range of qualifications to meet the needs of candidates of all ages and abilities. OCR qualifications include AS/A Levels, Diplomas, GCSEs, Cambridge Nationals, Cambridge Technicals, Functional Skills, Key Skills, Entry Level qualifications, NVQs and vocational qualifications in areas such as IT, business, languages, teaching/training, administration and secret...

OCR AS LEVEL CHEMISTRY A H032/01 BREADTH IN CHEMISTRY QP

2 © OCR 2023 1 Argon forms 1% of the air and is unreactive. Argon is used as a replacement for nitrogen when nitrogen is too reactive. (a) Argon is unreactive because it is in Group 0 of the Periodic Table. State one other property of argon. .............................................................................................................................................. [1] (b) Chlorine is very reactive. Argon is unreactive. Explain how the reactivity of these two elements a...