Question

Match List - I with List - II : List - I
(a) Chlorophyll
(b) Vitamin - B₁₂
(c) Anticancer drug
(d) Grubbs catalyst List - II
(i) Ruthenium
(ii) Platinum
(iii) Cobalt
(iv) Magnesium

• A. (a)-(iii), (b)-(ii), (c)-(iv), (d)-(i)
• B. (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
• C. (a)-(iv), (b)-(ii), (c)-(iii), (d)-(i)
• D. (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)

Hint:

Magnesium and Cobalt are two of the most frequently asked essential trace elements in coordination chemistry.

Answer 1

The Correct Option is B

Step 1: **Chlorophyll** contains a **Magnesium** ion at its center.
Step 2: **Vitamin B₁₂** (Cyanocobalamin) is a coordination complex of **Cobalt**.
Step 3: The famous **Anticancer drug** is Cis-platin, which contains **Platinum**.
Step 4: **Grubbs catalyst** used in olefin metathesis contains **Ruthenium**.