Polyhydric alcohols react with copper(II) hydroxide at room temperature. Add freshly prepared to the test tube.
✅ Through the systematic application of qualitative reagents, we successfully identified the organic compounds. The experiment demonstrates that the chemical properties of functional groups allow for the precise differentiation of substances within different homologous series.
CH3CHO+2Cu(OH)2ΔCH3COOH+Cu2O↓+2H2Ocap C cap H sub 3 cap C cap H cap O plus 2 cap C u open paren cap O cap H close paren sub 2 cap C cap H sub 3 cap C cap O cap O cap H plus cap C u sub 2 cap O down arrow positive 2 cap H sub 2 cap O 4. Summary Table of Results Na2CO3cap N a sub 2 cap C cap O sub 3 Gas evolution ( CO2cap C cap O sub 2 Glycerol Bright blue solution Aldehyde / Glucose Brick-red precipitate 5. Final Conclusion
Polyhydric alcohols react with copper(II) hydroxide at room temperature. Add freshly prepared to the test tube.
✅ Through the systematic application of qualitative reagents, we successfully identified the organic compounds. The experiment demonstrates that the chemical properties of functional groups allow for the precise differentiation of substances within different homologous series.
CH3CHO+2Cu(OH)2ΔCH3COOH+Cu2O↓+2H2Ocap C cap H sub 3 cap C cap H cap O plus 2 cap C u open paren cap O cap H close paren sub 2 cap C cap H sub 3 cap C cap O cap O cap H plus cap C u sub 2 cap O down arrow positive 2 cap H sub 2 cap O 4. Summary Table of Results Na2CO3cap N a sub 2 cap C cap O sub 3 Gas evolution ( CO2cap C cap O sub 2 Glycerol Bright blue solution Aldehyde / Glucose Brick-red precipitate 5. Final Conclusion
