1.

Point out the oxidation number of `C` in the following: `CH_(4),C_(3)H_(8),C_(2)H_(6),C_(4)H_(10),CO,CO_(2)` and `HCO_(3)^(-),CO_(3)^(2-)`

Answer» `CH_(4): -4, C_(3)H_(8):-(8)/(3), C_(2)H_(6):-3`
`C_(4)H_(10):-(10)/(4), CO:+2 , CO_(2):+4`,
`HCO_(3)^(-):+4, CO_(3)^(2-):+4`


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