What is the chargeon the complex cr(c2o4)( h2o2) formed by cr?
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(a) Na[Al(OH)4] (b) [Co(C2O4)2(H2O2 ]
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Answer:
oxidation number of Cr is +3, x = 3
coordination number of Cr is 6, y = 6
So,x+y = 6+3 = 9
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