$$\(\mathbf{M}\)$$ reacts to form $$\(\mathbf{R}\)$$ by the addition of one reagent, as shown in Fig. 5.1. Identify the reagent and conditions for this reaction. .........................................................................................................................................
Exam No：9701_s24_qp_23 Year：2024 Question No：5(a)
Answer:
Knowledge points:
11.4.1 describe and interpret, in terms of changes in oxidation number, the reaction of chlorine with cold and with hot aqueous sodium hydroxide and recognise these as disproportionation reactions
11.4.2 explain, including by use of an equation, the use of chlorine in water purification to include the production of the active species HOCl and which kill bacteria.
Solution:
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