Chemistry - Complete d-block Question with Solution | TestHub

Consider the following reactions ${\mathrm{K}}_2{\mathrm{Cr}}_2{\mathrm{O}}_7\underset{-{\mathrm{H}}_2\mathrm{O}}{\overset{\mathrm{KOH}}{\to }}[\mathrm{A}]\underset{-{\mathrm{H}}_2\mathrm{O}}{\overset{{\mathrm{H}}_2{\mathrm{SO}}_4}{\to }}[\mathrm{B}]+{\mathrm{K}}_2{\mathrm{SO}}_4$ The products $[A]$ and $[B]$, respectively are :