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During an experiment, chlorine gas was bubbled into a solution of potassium iodide (a) State the observations made

During an experiment, chlorine gas was bubbled into a solution of potassium iodide
a) State the observations made
b) Using an ionic equation, explain why the reaction is redox.

Answers

a) The potassium iodide solution turned from colourless to dark brown

b) Cl_2(aq) + 2I^-_(aq) $\rightarrow$ I_2(aq) + 2Cl^-_(aq)

Oxidation state of chlorine reduces from 0 to -1 hence reduction while oxidation state of iodide ions increases from -1 to 0 hence oxidation therefore the reaction is redox

johnmulu answered the question on February 10, 2017 at 13:16

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