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

The substance is glucose based.

The substance is not glucose based.

The substance is not glucose based.