Q. The gas obtained by reactions of $K_{4}Fe(CN)_{6}$ with conc. $H_{2}{SO}_{4}$ is
A) $H_{2}S$
B) $CO$
C) ${NO}_{2}$
D) ${CO}_{2}$
Explanation
(b)
$K_{4}\lbrack Fe(CN)_{6}\rbrack + 6H_{2}{SO}_{4} + 6H_{2}O\ \overset{\mathrm{\Delta}}{\rightarrow}2K_{2}{SO}_{4}$
$\ \ \ \ \ \ \ + {FeSO}_{4} + 3\left( {NH}_{4} \right)_{2}{SO}_{4} + 6CO \uparrow$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.