Q. The blue pigment of Molluscan blood is hemocyanin from?
Answer: Copper
Notes: The blue pigment of Molluscan blood is hemocyanin from Copper. Haemocyanin is the pigment found in the blood of molluscs, crustaceans, and arthropods.

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app. Question Number: 17 in 21. Fishes & Mollusks in above course in App.