What is the product when K 2 Cr 2 O 7 reacts with KI in acidic medium?
Cr 2 O 7 2- oxidizes I - to I 2 and gets reduced to Cr 3+ (green).
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Actinoids and Comparison of Lanthanoids and Actinoids