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The colour of Chromium II complex in open air change to _______?

The colour of Chromium II complex in open air change to _______?

کھلی ہوا میں کرومیم ٹو کمپلیکس کا رنگ _______ میں تبدیل ہوتا ہے؟
Explanation
  • Chromium(II) complexes are easily oxidized in open air to Chromium(III), which often appears green.
  • The color change occurs due to oxidation and ligand exchange reactions.