Correct answer is option (b) .
Kolar in Karnataka has large deposits of gold not silver.

Kolar in Karnataka does not have large deposits of silver. This statement is False. Let's discuss why this is the case in detail below:

1. Background of Kolar, Karnataka:
- Kolar is a district located in the state of Karnataka, India.
- It is known for its rich history of gold mining and has been a major gold producing region in the past.

2. Gold Mining in Kolar:
- Kolar has been renowned for its gold mines, not silver.
- The Kolar Gold Fields (KGF), located in the district, have been one of the deepest and most productive gold mines in the world.
- Gold mining in Kolar started during the rule of the British in India and continued until the early 2000s.

3. Absence of Large Silver Deposits:
- While Kolar has a significant history of gold mining, there is no evidence or historical record of large silver deposits in the region.
- Silver mining requires a different geological setting and mineralization process compared to gold mining.
- Geologically, silver deposits are typically found in association with base metals like lead, zinc, and copper, which have different mineralization patterns than gold.

4. Mineral Resources in Karnataka:
- Karnataka, as a state, does have some deposits of silver, but they are not concentrated in the Kolar district.
- The primary minerals found in Karnataka include iron ore, manganese, limestone, bauxite, chromite, and granite.
- It is important to note that the presence of one mineral in a region does not necessarily indicate the presence of another mineral.

5. Conclusion:
- In conclusion, Kolar in Karnataka does not have large deposits of silver. It is renowned for its gold mining history, not silver mining.
- Silver mining requires a different geological setting, and there is no historical evidence or record of large silver deposits in the Kolar district.