Question: Which of the following is not formed when $\mathrm{H}_{2} \mathrm{~S}$ reacts with acidic $\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}$ solution ?
$\mathrm{K}_{2} \mathrm{SO}_{4}$
$\mathrm{Cr}_{2}\left(\mathrm{SO}_{4}\right)_{3}$
S
$\mathrm{CrSO}_{4}$
Correct Option: , 4
Solution:
Solution Not Required