Chemistry 9-1 4CH1: Physical Chemistry Topical Past Paper Questions
Edexcel IGCSE (9-1) Chemistry 9-1 (4CH1) past-paper questions on Physical Chemistry, free. This topic is frequently examined across 13 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
The equation shows one of the possible substitution reactions that occurs during the reaction between methane and chlorine. $$ \mathrm{CH}_{3}\mathrm{Cl}+\mathrm{3Cl}_{2}\rightarrow\mathrm{CCl}_{4}+\mathrm{3HCl}\qquad\Delta H=-339\mathrm{kJ}/\mathrm{mol} $$ (a) Complete the react…
This question is about alcohols and carboxylic acids. (a) These are the structural formulae of alcohol A and carboxylic acid B. ## Alcohol A $$ \mathrm{CH_{3}CH_{2}CH_{2}OH} $$ ## Carboxylic acid B $$ \mathrm{CH}_{3}(\mathrm{CH}_{2})_{n}\mathrm{COOH} $$ (i) Name alcohol A. (1) (…
Methanol is made by the reaction between hydrogen and carbon monoxide. This is the equation for the reaction. $$ 2\mathrm{H}_{2}(\mathrm{g})+\mathrm{CO}(\mathrm{g})\rightleftharpoons\mathrm{CH}_{3}\mathrm{OH}(\mathrm{g})\quad\Delta H=-119\mathrm{kJ}/\mathrm{mol} $$ A mixture of h…
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