Q. Which of the following minerals occurs in the Minas Gerais province of Brazil ?

Correct Answer: b) Iron ore

Explanation:
Minas Gerais is a state in Brazil that is renowned for its rich mineral resources, particularly iron ore. It is one of the largest producers of iron ore in the world, with extensive mining operations in the region. The state is home to the Quadrilátero Ferrífero (Iron Quadrangle), which is a major iron ore mining area.

Other minerals like bauxite, mica, and coal are also found in various parts of the world, but they are not specifically associated with Minas Gerais in the same way as iron ore. Hence, the correct answer is iron ore.