Question: The incorrect statement among the following is :
$\mathrm{VOSO}_{4}$ is a reducing agent
Red colour of ruby is due to the presence of $\mathrm{CO}^{3+}$
$\mathrm{Cr}_{2} \mathrm{O}_{3}$ is an amphoteric oxide
$\mathrm{RuO}_{4}$ is an oxidizing agent
Correct Option: , 2
Solution:
Red colour of ruby is due to presence of $\mathrm{CrO}_{3}$ or $\mathrm{Cr}^{+6}$ not $\mathrm{CO}^{3+}$
