A, B and C are three biomolecules. The results of the tests performed on them are given below:
| Molisch'h Test | Barfoed | Biuret Test | |
| A | Positive | Negative | Negative |
| B | Positive | Positive | Negative |
| C | Negative | Negative | Positive |
A, B and C are respectively:
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| Lab tests | Molisch's test | Barfoed test | Biurest test |
| Given by | Lactose, Glucose, Fructose | Glucose | Albumin |
| Do not given by | Fructose | Alanine |