Is it 3?
If it was +2 on the complex then it was 3
Share solution its given 3 as answer
Made sort of guess Cr common oxidation states are +3 +6 +6, liye total 12 Hona chahiye 2X so it doesn’t seem to be so took as 3
fact : O_2 and O-O are not the same
One of them has -2 and the other -1 (I don't remember which one)
Had the same question in Pace booklet and I remember our sir telling this and from that day onwards I lost hope in inorganic