Question

Potassium dichromate can be converted to potassium chromate by adding:

• A. $KOH$
• B. $Conc.H_{2}S{O}_4$
• C. $N{H}_{4}OH$
• D. $C{H}_{3}COOH$
  

Answer 1

The correct option is A $KOH$

Potassium dichromate can be converted to potassium chromate by adding $KOH$.

$K_{2}C{r}_2{O}_7+2KOH\to 2K_{2}Cr{O}_4+H_{2}O$

The orange-red solution becomes yellow.

Hence, option $A$ is correct.