What is a test for iron(III) compounds?

Using thiocyanate ions to give a red complex. During the session I will go through the reaction mechanism and evaluation of soluble / insoluble products.

AS

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Why can there be one major product and one minor product after electrophilic addition takes place across a double bond?


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How will a catalyst affect the position of equilibrium?


Excess KCN(aq) is added to a solution of [Co(H2O)6]2+. Identify the complex ion formed and predict its shape and charge.