A student is performing a Benedict’s test on an unknown substance. The student adds the reagent (the chemical required to make a color change), and nothing happens. Which conclusion can the student make?(1 point) Responses The substance is not glucose based. The substance is not glucose based. The test was inconclusive because the student needed to also test with iodine or vinegar. The test was inconclusive because the student needed to also test with iodine or vinegar. The substance is glucose based. The substance is glucose based. The test was inconclusive because the student forgot to add heat.
1 answer
The correct conclusion the student can make is: The test was inconclusive because the student forgot to add heat.
Benedict's test requires heating in order to detect reducing sugars like glucose. If no color change occurs after adding the Benedict’s reagent, it does not definitively prove that the substance is not glucose-based, as the heating step is crucial for the reaction to occur.
