the percentage of carbon and hydrogen are estimated simultaneously in an organic cmpound by liebig method. State true or false.

Answer

To determine whether the statement "the percentage of carbon and hydrogen are estimated simultaneously in an organic compound by Liebig method" is true or false, we can analyze the Liebig method step by step.

### Step-by-Step Solution:

1. **Understanding the Liebig Method**: The Liebig method is a classical technique used for the determination of the percentage composition of carbon and hydrogen in organic compounds.

**Hint**: Remember that the Liebig method involves combustion of the organic compound.

2. **Combustion Process**: In this method, a known mass of the organic compound is heated in the presence of pure oxygen. This combustion process leads to the formation of carbon dioxide (CO2) and water (H2O).

**Hint**: Think about what products are formed when organic compounds combust completely.

3. **Collection of Products**: The CO2 and H2O produced during the combustion are collected and weighed. This is crucial because the mass of these products will help in calculating the percentages of carbon and hydrogen.

**Hint**: Consider how the mass of the products relates to the original mass of the organic compound.

4. **Calculating Percentages**: The percentage of carbon in the organic compound can be calculated from the mass of CO2 collected, while the percentage of hydrogen can be calculated from the mass of H2O collected.

**Hint**: Recall the molecular weights of CO2 and H2O and how they relate to the amounts of carbon and hydrogen.

5. **Conclusion**: Since both carbon and hydrogen can be estimated simultaneously using the masses of CO2 and H2O produced from the combustion of the organic compound, the statement is true.

**Hint**: Reflect on the simultaneous nature of the estimations based on the products of combustion.

### Final Answer:
The statement is **True**. The percentage of carbon and hydrogen can indeed be estimated simultaneously in an organic compound by the Liebig method.