Determine the oxidation number of C in the following:
`CO,CO_(2),HCO_(3)^(-),C_(2)H_(6),C_(4)H_(10)`.

Explanation

To determine the oxidation number of carbon (C) in the given compounds, we will follow a systematic approach for each compound. The oxidation number of an element in a compound can be calculated using the known oxidation states of other elements in the compound.

### Step-by-Step Solution:

1. **For CO (Carbon Monoxide)**:
- Let the oxidation number of C be \( x \).
- Oxygen (O) has an oxidation number of \(-2\).
- The overall charge of CO is 0.
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