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The oxidation number of cobalt in `K [Co(CO)_(4)]` isA. `+1`B. `-1`C. `+3`D. `-3` |
Answer» Correct Answer - C Let O.S. of Co in the complex = x O.S. of K = `+1, O.S. of CN = -1` `1+x + 4(-1)` = 0 x = 3 |
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