Which of the following States has the largest reserve of copper ore ?

Bihar
Jharkhand
Karnataka
Rajasthan

The correct answer is (c) Karnataka.

Karnataka has the largest reserve of copper ore in India. The total reserve of copper ore in Karnataka is estimated to be 23.4 million tonnes. The major copper ore deposits in Karnataka are located in the districts of Bellary, Chitradurga, and Tumkur.

Bihar has a reserve of 1.2 million tonnes of copper ore. Jharkhand has a reserve of 1.1 million tonnes of copper ore. Rajasthan has a reserve of 0.9 million tonnes of copper ore.

Copper ore is a mineral that is used to produce copper metal. Copper metal is used in a variety of applications, including electrical wiring, plumbing, and construction.