In the conversion of CrO_(4)^(-2)rarrCr_(2)O_(7)^(-2), the oxidation number of oxygen

In the conversion of CrO_(4)^(-2)rarrCr_(2)O_(7)^(-2), the oxidation n

1.	In the conversion of CrO_(4)^(-2)rarrCr_(2)O_(7)^(-2), the oxidation number of oxygen
Answer» increases DECREASES becomes zeo remains unchanged SOLUTION :`CrO_4^(-2)` `X +4 (-2) =-2 implies x = + 6` `2x +7(-2) =-2 implies x= +6`