Question

When $Mn{O}_2$ is fused with $KOH$ and $KN{O}_3$, a coloured compound is formed, the product and its colour is:

• A. $K_{2}Mn{O}_4,$ Green
• B. $KMn{O}_4,$ Purple
• C. $M{n}_2{O}_3,$ Blue
• D. $K_{3}Mn{O}_2$, Red

Answer 1

The correct option is A $K_{2}Mn{O}_4,$ Green

When $Mn{O}_2$ is fused with $KOH$ and $KN{O}_3$ potassium magnate $K_{2}Mn{O}_4$ is formed .$K_{2}Mn{O}_4$ is green coloured