The correct answer is coal.
Chhattisgarh is the largest producer of coal in India, accounting for about 30% of the country’s total production. The state has large reserves of both bituminous and lignite coal, which are used to generate electricity, produce steel, and make other products.
Iron ore is another important mineral produced in Chhattisgarh. The state is the third-largest producer of iron ore in India, after Odisha and Jharkhand. Iron ore is used to make steel, which is a key ingredient in many manufactured products.
Bauxite is a mineral that is used to make aluminum. Chhattisgarh is a minor producer of bauxite, accounting for about 2% of India’s total production.
Limestone is a mineral that is used to make cement, lime, and other products. Chhattisgarh is a major producer of limestone, accounting for about 10% of India’s total production.
Coal is the most important mineral produced in Chhattisgarh because it is used to generate electricity, produce steel, and make other products. The state has large reserves of both bituminous and lignite coal, which are used to meet the energy needs of the country.