In 4 test tubes a) hexane b) ethanol) c) formic aldehyde d) glycerin solution. Identify each substance
In 4 test tubes a) hexane b) ethanol) c) formic aldehyde d) glycerin solution. Identify each substance using characteristic reactions
If you put a heated copper spiral covered with black copper (II) oxide into a test tube and it becomes shiny and gas will be released, then ethanol is in the test tube.
The test substance can be burned in porcelain steaming cups. A substance that burns with a bright flame, hexane.
When copper (II) hydroxide is added in an alkaline medium to an aldehyde solution, a change in the color of copper (II) hydroxide is observed, at the beginning a yellow precipitate of copper (I) hydroxide appears, which, upon further heating, turns into red copper (I) oxide
A glycerol solution can be detected using freshly prepared copper (II) hydroxide; when it is heated with a glycerol solution in an alkaline medium, the precipitate will dissolve and the solution will turn blue.
