Differentiate between the principle of estimation of nitrogen in an organic compound by (i) Dumas method and (ii) Kjeldahl’s method.

Explanation

To differentiate between the principle of estimation of nitrogen in an organic compound by (i) Dumas method and (ii) Kjeldahl’s method, we can outline the steps and principles involved in each method.

### Step-by-Step Solution:

#### (i) Dumas Method:
1. **Principle**: The Dumas method is based on the combustion of the organic compound in the presence of excess oxygen.
2. **Process**:
- The organic compound is heated in a combustion tube along with copper oxide (CuO) and a source of heat.
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