1.

In which of the following pair of compounds, oxidation number of chromium is same(a) K2CrO4 and KCrO2(b) KCrO2 and Cr(CO)6(c) K2Cr2O7 and Cr(CO)4(d) K2Cr2O7 and K2CrO4

Answer»

(b) KCrO2 and Cr(CO)6



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