Chemistry B (Salters) H033 Salters: The ozone story Topical Past Paper Questions
OCR AS Chemistry B (Salters) H033 (Salters) past-paper questions on The ozone story, free. This topic is frequently examined across 5 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
A student investigates the equilibrium in Equation 4.1. $$ 2NO_{2}(g) \rightleftharpoons N_{2}O_{4}(g) \quad \Delta H=-58\mathrm{kJ} \mathrm{mol}^{-1} $$ $ NO_{2}(g) $ is brown and $ N_{2}O_{4}(g) $ is colourless. (a) (i) Write the expression for the $K_{c}$ for the equilibrium i…
The Antarctic ozone holes of 2020 and 2021 were some of the largest on record, in spite of an overall downwards trend. This was because of unusually cold conditions in the Antarctic in those years. Chlorine radicals in the stratosphere form other radicals that react together on t…
The manufacture of chlorofluorocarbons (CFCs) has been banned because they cause the depletion of ozone in the stratosphere. CFCs like $ CCl_{3} $ have been replaced by a range of compounds including hydrochlorofluorocarbons (HCFCs) which are mainly broken down before they reach…
Sign in required
Full The ozone story question set, mark schemes and AI worksheets
Log in for the full topic-segregated question set, mark schemes, and AI worksheets built from every Chemistry B (Salters) H033 past paper. New accounts start with 25 free credits.
Explore all Chemistry B (Salters) H033 topics
All Chemistry B (Salters) H033 topics