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 test was inconclusive because the student forgot to add heat. The test was inconclusive because the student forgot to add heat. The substance is not glucose based. The substance is not glucose based. The substance is glucose based. The substance is glucose based. The test was inconclusive because the student needed to also test with iodine or vinegar.

1 answer

The correct conclusion is: The test was inconclusive because the student forgot to add heat.

In a Benedict's test, the solution typically needs to be heated for a color change to occur if reducing sugars (like glucose) are present. Without heating, even if glucose is present, no color change would happen, making the result inconclusive.