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)

Question

Responses

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 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.
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Answer 1

The correct conclusion the student can make is:

The test was inconclusive because the student forgot to add heat.

Benedict's test for reducing sugars, such as glucose, typically requires heating to produce a color change. If there is no color change, it could be due to insufficient heat or the absence of reducing sugars. Therefore, the inaction in the test does not definitively indicate that the substance is not glucose-based.