Q:

What is the Molisch test?

A:

Quick Answer

The Molisch test is used to detect carbohydrates.The test can also be used to identify compounds that can be dehydrated to furfural in the presence of sulfuric acid.

  Know More

Full Answer

The Molisch test is performed by combining a small reagent with the test solution in a test tube. Sulfuric acid is added slowly to the slightly tilted tube. The mixture will form a layer without further mixing. If the layer is purple, the test is positive for the presence of carbohydrates. If a green color appears, the test is negative.

The test is named after botanist Hans Molisch, a professor at the German University of Prague.

Learn more about Chem Lab
Sources:

Related Questions

  • Q:

    What are test tubes used for?

    A:

    Test tubes are used by chemists in the lab to heat, hold and mix small quantities of liquid or solid chemicals during experiments. They have a round bottom and are made of borosilicate glass to withstand temperature changes and resist the reaction of chemicals.

    Full Answer >
    Filed Under:
  • Q:

    What are the uses of a test tube rack?

    A:

    Test tube racks are commonly used in laboratories to keep test tubes upright so that the equipment does not roll away, spill or become accidentally cracked. Test tubes are delicate equipment, usually made of glass.

    Full Answer >
    Filed Under:
  • Q:

    What is a Fehling's test?

    A:

    In chemistry, scientists commonly use a Fehling's test to reduce sugars. To perform this test, the scientist uses both Fehling's B and Fehling's A solutions. The A solution is dilute sulfuric acid, distilled water and copper sulfate III, and the B solution is distilled water, potassium tartrate and sodium hydroxide.

    Full Answer >
    Filed Under:
  • Q:

    What is Seliwanoff's test?

    A:

    Seliwanoff's test is a chemical test that is performed to differentiate between a ketone hexose and aldehyde sugar. The test is named after the chemist who developed the test, Theodor Seliwanoff.

    Full Answer >
    Filed Under:

Explore