Describe the preparation of potassium permanganate, How does the acidified permanganate solution react with (i) Iron(II) ions (ii) `SO_(3)^(2-)` and (iii) oxalic acid? Write the ionic equations for the reactions.

How does the acidified permanganate solution react with following:- HI.

Describe the oxidising action of potassium dichromate and write the ionic equations for its reaction with: (i) Iodide (ii) Iron (ii) Solution (iii) 'f(H2s

Copper reacts with nitrate ion NO_3^- in acidic medium to give cupric ions (Cu^(2+)) nitrogen dioxide. Write the balanced ionic equation for the reaction.

The Mn^3+ ion is unstable in solution and undergoes disproportionation to give Mn^2+, MnO2 and H^+ ion. Write a balanced ionic equation for the reaction.

Permanganate ion ( MnO_4^(-) ) reacts with bromide ion (Br^(-) in basic medium to give manganese dioxide ( MnO_2 ) and bromate ion ( BrO_3^(-) ) a) Write the balanced ionic equation for this reaction.

During the estimation of Mohr's: salt. by using potassium permanganate, on 'adding KMnO solution to acidified Mohr's salt solution, pink colour of permanganate vanishes and finally appears at the end point a. Give the chemistry of the reaction. b. Illustrate the oxidising property of '(KMnO)_(3)' in basic medium..

How do you account for the following observations? a) Though alkaline potassium permanganate and acidic potassium permanganate both are used as oxidants, yet in the manufacture of benzoic acid from toluene we use alcoholic potassium permanganate as an oxidant. Why? Write a balanced redox equation for the reaction. b) When concentrated- sulphuric acid is added to an inorganic mixture containing chloride, we get colourless pungent smelling gas 'HCl', but if the mixture contains bromide, then we get red vapours of bromine. Why?

Write ionic equation for the reaction between Cr_(2)O_(7)^(2-) ions and Fe^(2+) ions in acidic medium?