The incorrect statement among the following is :

Question:

The incorrect statement among the following is :

  1. $\mathrm{VOSO}_{4}$ is a reducing agent

  2. Red colour of ruby is due to the presence of $\mathrm{CO}^{3+}$

  3. $\mathrm{Cr}_{2} \mathrm{O}_{3}$ is an amphoteric oxide

  4. $\mathrm{RuO}_{4}$ 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 $\mathrm{CO}^{3+}$

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