Question

_____ is a very good example of pseudo tannin.

• A. Chlorogenic acid
• B. Catachin
• C. Gallotannin
• D. Ellagic acid

Hint:

Pseudo tannins (like Chlorogenic acid) are smaller and simpler than true tannins.

Answer 1

The Correct Option is A

Step 1: Concept
Pseudo tannins are compounds that resemble tannins in some chemical tests but have a lower molecular weight and do not provide a positive Goldbeater's skin test.

Step 2: Meaning
Unlike true tannins, they do not have the complexity required to tan hide (convert skin to leather).

Step 3: Analysis
Gallotannins are true hydrolysable tannins. Chlorogenic acid, commonly found in coffee and nux-vomica, is the classic example of a pseudo tannin.

Step 4: Conclusion
Therefore, Chlorogenic acid is correctly classified as a pseudo tannin.

Final Answer: (A)