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What is the oxidation state of Cr in CrO5?(a) 3(b) 4(c) 5(d) 6I had been asked this question during an interview.The above asked question is from Redox Reactions topic in portion Redox Reactions of Chemistry – Class 11

Answer»

Correct choice is (d) 6

For explanation I would SAY: The oxidation states of oxygens in CRO5 are -1, -1, -1, -1 and -2. The oxidation state of Cr is given by x. Therefore x + 4(-1) + (-2)(1) = 0. X = 6. The oxidation state of CHROMIUM in chromium PEROXIDE is 6.



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