Potassium dichromate K2Cr2O7
Potassium permanganate KMnO4
Shaalaa.com | D and F Block Elements part 25 (Interstitial compounds and Alloys)
Series 1: playing of 2
When chromite ore FeCr2O4 is fused with NaOH in presence of air, a yellow-coloured compound (A) is obtained, which on acidification with dilute sulphuric acid gives a compound (B). Compound (B) on reaction with KCl forms an orange coloured crystalline compound (C).
(i) Write the formulae of the compounds (A), (B) and C.
(ii) Write one use of compound (C).