The oxidation number of Cr in K2Cr2O7 is …… (a) +4 (b) + 6 (c) – InterviewSolution

1.

The oxidation number of Cr in K2Cr2O7 is …… (a) +4 (b) + 6 (c) O (d) + 7

Answer»

(b) + 6

K₂Cr₂O₂

2 + 2x – 140

2x – 12 = 0

2x = + 12

x = + 6

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