Q. Which of the following chemical reactions depicts the oxidising behaviour of $H_{2}{SO}_{4}$?
A) $2HI + H_{2}{SO}_{4} \longrightarrow I_{2} + {SO}_{2} + 2H_{2}O$
B) $Ca(OH)_{2} + H_{2}{SO}_{4} \longrightarrow {CaSO}_{4} + 2H_{2}O$
C) $NaCl + H_{2}{SO}_{4} \longrightarrow {NaHSO}_{4} + HCl$
D) $2{PCl}_{5} + H_{2}{SO}_{4} \longrightarrow 2{POCl}_{3} + 2HCl + {SO}_{2}{Cl}_{2}$
Explanation
(a)
_{-1} _{+6 0 +4}
$2HI + H_{2}{SO}_{4} \longrightarrow I_{2}{+ SO}_{2} + 2H_{2}O$
$H_{2}{SO}_{4} - Reduced\ to\ \longrightarrow {SO}_{2}\$
^{oxidising}
^{agent}
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.