Q54 · CSIR-NET Chemistry, June 2011

Paper: CSIR-NET June 2011 · Subject: Inorganic Chemistry · Chapter: Bioinorganic Chemistry · Topic: Bioinorganic Chemistry – General · Marks: 2 · Difficulty: Easy

The ligand system present in vitamin $\mathrm{B}_{12}$ is:
(a)Porphyrin
(b)Corrin
(c)Phthalocyanine
(d)Crown ether
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
Cobalt in vitamin B₁₂ sits in a corrin ring (one fewer meso carbon than porphyrin, partly saturated).

Study loop for Bioinorganic Chemistry

1. Practise the PYQsPrevious-year questions, with answers

· Browse this chapter in the app