Prove empirically that ethyl alcohol is in the test tube. (qualitative reaction to monohydric alcohols).
| May 2, 2021 | education
Ethyl alcohol or ethanol (C2H5OH) is a monohydric alcohol.
To prove its presence in a test tube, it is necessary to conduct a qualitative reaction to monohydric alcohols: place a red-hot copper wire in a test tube (the surface of the copper wire is covered with copper (II) oxide formed when the wire is heated in air). When interacting with copper oxide, ethanol is oxidized to acetaldehyde (specific odor), and a layer of copper appears on the copper wire.
2Cu + O2 = 2CuO
C2H5OH + CuO = Cu + CH3C (O) H + H2O
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