Question

The following reaction is used for the detection of ...... adulteration in milk sample:
Milk sample + HCl + powder Resorcinol \(\xrightarrow{\text{boil for 5 min. in water bath}}\) Red coloration

• A. Urea
• B. Sugar
• C. Formaldehyde
• D. Water

Hint:

Use specific chemical reactions to detect sugar and other common adulterants in milk.

Answer 1

The Correct Option is B

To detect sugar adulteration in milk, combine hydrochloric acid (HCl) and resorcinol powder with the sample, then boil. A red coloration signifies the presence of added sugar, which is typically used to artificially increase milk density.