Question

Mixture of $KN{O}_3$ and $KN{O}_2$ can oxidise $C{r}_2{O}_3$ to $Cr{O}_4^{2-}$.

If true enter 1, else 0.

Answer 1

A mixture of $KN{O}_3$ and $KN{O}_2$ can oxidise $C{r}_2{O}_3$ to ${Cr{O}_4}^{2-}$.

$3KN{O}_2+KN{O}_3+C{r}_3{O}_3\stackrel{△}{\to }2K_{2}Cr{O}_4+4NO$ (but $KN{O}_2$ and $KN{O}_3$ are in molten states)

Hence, the statement is correct.