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CBSE Class 11-science Answered

oxidation State of cr2o-²7
Asked by snehadethe45 | 22 Oct, 2020, 11:31: AM
Expert Answer
Suppose oxidation number on Cr=x
charge on dichromate ion=-2
2 x minus 2 left parenthesis 7 right parenthesis equals negative 2
2 x minus 14 equals negative 2
2 x equals negative 2 plus 14
2 x equals 12
x equals plus 6
 
Answered by Ravi | 25 Oct, 2020, 06:33: PM
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