# Choose the most appropriate answer from the options given below:

Question:

Choose the most appropriate answer from the options given below:

1. $a-i i i, b-i i, c-i v, d-i$

2. $a-i v, b-i i i, c-i i, d-i$

3. $a-i v, b-i i i, c-i, d-i i$

4. $a-i v, b-i i, c-i i i, d-i$

Correct Option: , 2

Solution:

Chlorophyll is a coordination compound of magnesium. Vitamin B-12, cyanocobalamine is a coordination compound of cobalt. Cisplatin is used as an anti-cancer drug and is a coordination compound of platinum. Grubbs catalyst is a compound of Ruthenium.