Question

Bile salts are identified by ______ test.

• A. Fouchet's test
• B. Hay's test
• C. Benzidine test
• D. Gmelin's test

Hint:

Hay's test = Sinking sulfur = Bile salts.

Answer 1

The Correct Option is B

Step 1: Concept
Urine analysis uses specific chemical tests to detect the presence of abnormal constituents like bile salts or pigments.

Step 2: Meaning
Bile salts lower the surface tension of fluids.

Step 3: Analysis
Hay's sulfur test utilizes this property; if bile salts are present, sulfur powder sprinkled on the surface of urine will sink. Fouchet's and Gmelin's tests are used for bile pigments, not salts.

Step 4: Conclusion
Hay's test is the standard qualitative test for identifying bile salts.

Final Answer: (B)