Which one of the following pairs is not correctly matched?

Correct option is D

The pair Iron - Kolihan and Mandhan is not correctly matched. Kolihan and Mandhan are mining areas primarily associated with copper, not iron. These mines are located in the Khetri Copper Belt of Rajasthan, known for their significant copper deposits.
Information Booster:
1. Kolihan and Mandhan: Known for copper mining, part of Hindustan Copper Limited (HCL) operations.
2. Mochia Magra: Located in Zawar, Udaipur, famous for lead-zinc mining.
3. Leelwani: A significant manganese mining area.
4. Anandapur-Bhukia: Known for gold deposits, under exploration for commercial viability.
5. Iron ore: Bhilwara is notable for iron deposits, especially in the Ras and Bijolia regions.
Additional Knowledge:
· Lead-Zinc (Mochia Magra): Zawar mines are among the oldest zinc-lead mines in the world.
· Manganese (Leelwani): Found in parts of central and southern Rajasthan.
· Gold (Bhukia): Exploration projects are underway to estimate the commercial feasibility of gold mining.