A student performed Benedict’s test on a sample and obtained a negative result. What should the student do to confirm that there are no sugars in the sample?
- Aboil the sample for 5 minutes then repeat the Benedict0s test
- Bboil with alkali, neutralise with hydrochloric acid and repeat the Benedict0s test
- Cboil with hydrochloric acid, neutralise with alkali and repeat the Benedict0s test
- Drepeat the Benedict0s test but add more Benedict0s reagent