Oxidation number 3

Chemistry Level 2

Find the sum of the oxidation numbers of Cr, Fe and B in the following ions and molecule: Cr 2 O 7 − 2 , Fe(CN) 6 − 4 , B 2 H 6 . \text{Cr}_{2}\text{O}^{-2}_{7}, \text{Fe(CN)}^{-4}_{6}, \text{B}_{2}\text{H}_{6}.

11 11 10 10 5 5 12 12

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Krishna Singh by Krishna Singh , 22, India

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1 solution

Abhishek Rawat
May 22, 2014

oxidation no of Cr , Fe , b in their respective molecules or ions is +6,+2,+3 hence sum of their oxidation no is 11

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