The equilibrium ${\rm{C}}{{\rm{r}}_2}{\rm{O}}_7^{2 - } + 2e\leftrightharpoons2{\rm{CrO}}_4^{2 - }$:

NEET UG CHEMISTRY MCQ: d & f- BLOCK ELEMENTS

1 Hard

1 of 1

Understanding +4 | -1

The equilibrium

\mathrm{C}{\mathrm{r}_2}\mathrm{O}_7^{2 - } + 2e\leftrightharpoons2\mathrm{CrO}_4^{2 - }

View answer and explanation

Correct option: B

Exists in basic medium

Option B (Exists in basic medium) is correct because dichromate (

\mathrm{C}{\mathrm{r}_2}\mathrm{O}_7^{2 - }

) exists in acidic medium, while chromate (

\mathrm{CrO}_4^{2 - }

) exists in basic medium.