1.

The difference between the oxidation number of Cr in chromate and dichromate ion is (a) 0 (b) 1 (c) 2(d) 3

Answer»

Correct option is (a) 0 

Oxidation number of Cr in chromate ion (CrO42) is +6 

Oxidation number of Cr in dichromate ion (Cr2O72-) is also +6



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