1. The document describes a procedure for detecting carbon and hydrogen in organic compounds. 2. The procedure involves heating an organic substance with copper oxide, passing the gases over copper sulfate to produce a blue color, and then over lime water which turns turbid, indicating the presence of carbon and hydrogen. 3. By observing these color changes, the practitioner can determine if carbon and hydrogen are present in the original organic material.

1. Detection of C&H in
organic compound
By : Mohamed Ahmed
Third year, iochemistry Department

2. Practical Example:
• Procedure:
1. Put an organic substance(paper-plastic-leather –textile).
2. Mixed it with copper oxide(CUO),and pass them over heating (flame).
3. Pass the resulting gases over an Hydrous copper sulfate(CUSO4).
4. Pass the resulting gases over Lime Water.
5. Record the observation and conclusion

3. Practical Example:
• Observation:
1. Convertion of white anhydrous copper sulfate(CUSO4)Into blue due to the
combination of O from CUSO4 With H from heated organic compound.
2- Lime water turns into Turbid color as the combination of O from CUO
with C resulting CO2 Evaluation and cause Turbidity.