Of the following substances, which would react positively with Biuret's, Lugol's, and Benedict's?

Question

1. water 2. starch 3. glucose 4. maltose 5. sucrose 6. fructose 7. galactose 8. albumin 9. hamburger juice 10. onion juice 11. milk 12. potato juice 13. lactose

Answer 1

3.glucose

Answer 2

Describe any limitations to the usefulness of protein, sugar, fats and starch test for food sample