Question
Match List I with List II
| List - I (Substances) |
List - II (Element Present) |
||
|---|---|---|---|
| (A) | Ziegler catalyst | (I) | Rhodium |
| (B) | Blood Pigment | (II) | Cobalt |
| (C) | Wilkinson catalyst | (III) | Iron |
| (D) | Vitamin $\mathrm{B_{12}}$ | (IV) | Titanium |
Choose the correct answer from the options given below: