Discuss the oxidising action of `K_(2) Cr_(2) O_(7)` and write the ionic equations for its reaction with
`Fe^(2+)`

Discuss the oxidising action of K_(2) Cr_(2) O_(7) and write the ionic equations for its reaction with H_(2)S

Describe the oxidising action of potassium dichromate and write the ionic equations for its reaction with (i) iodide (ii) iron (II) solution and (iii) H_(2)S .

What is the oxidation number of Cr in K_2Cr_2O_7 ?

Describe the process of preparation of K_(2)Cr_(2)O_(7) and KMnO_(4) .

What is the oxidation number of Cr in Cr_(2)O_(7)^(2-) ?

K_(2)Cr_(2)O_(7)//H^(+) changes to green by

Write the ionic equation showing the oxidising action of K_2Cr_2O_7 with H_2S .

What is the oxidation number of Cr in k_2Cr_2O_4 ?