Chemistry B (Salters) H033 Salters: Practical skills Topical Past Paper Questions
OCR AS Chemistry B (Salters) H033 (Salters) past-paper questions on Practical skills, free. This topic is frequently examined across 5 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
Some students investigate the rate of the reaction of sodium thiosulfate with acid. $$ \mathrm{S_{2}O_{3}^{2-}(aq)}~+~2\mathrm{H^{+}(aq)}~\rightarrow~\mathrm{H_{2}O(l)}~+~\mathrm{SO_{2}(g)}~+~\mathrm{S(s)} $$ Equation 24.1 The students make a pencil mark on a piece of paper. They…
This question is about Group 2 compounds. Group 2 hydroxides can be used to neutralise acidity in a variety of contexts. Magnesium hydroxide may be used to neutralise excess stomach acidity and calcium hydroxide may be used to neutralise acidity in soils. The hydroxides are forme…
Some students research nitrogen oxides as air pollutants. (a) Name the main polluting effect of $ NO_{2} $ in the atmosphere. 11 (b) The students look up some data for the experimentally measured rates of the reaction shown below. $$ 2\mathrm{NO}_{2}\rightarrow2\mathrm{NO}+\mathr…
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