Chemistry A H032: Basic concepts Topical Past Paper Questions
OCR AS Chemistry A (H032) past-paper questions on Basic concepts, free. This topic is frequently examined across 5 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
* Compound X is an organic compound with two functional groups. Compound X has the percentage composition by mass: C, 40.91%; H, 4.54%; O, 54.55%. Compound X does not decolourise bromine water. A scientist analyses compound X using mass spectrometry and infrared spectroscopy. Mas…
This question is about the enthalpy change of combustion of alcohols. (a) Explain the term enthalpy change of combustion. [2] (b) A student carries out an experiment to determine the enthalpy change of combustion, $ \Delta_{c}H $, of butan-1-ol, $ CH_{3}CH_{2}CH_{2}CH_{2}OH $. Th…
A student reacts methylpropene with hydrogen bromide, HBr, as shown in Reaction 1. (a) Outline the reaction mechanism for Reaction 1. The structures of methylpropene and compound A have been provided. Include curly arrows and relevant dipoles. name of mechanism ..... [4] (b) When…
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