Dolomite is an ore of :

Dolomite is a mineral and a type of ore that primarily contains magnesium and calcium. It is represented by the chemical formula CaCO₃·MgCO₃, which means it is a compound of calcium carbonate and magnesium carbonate.

Explanation of the Solution

Dolomite is an ore of magnesium due to its magnesium carbonate content. It is also a significant source of calcium. When dolomite is mined and processed, it provides these essential elements, which are widely used in various industries such as agriculture, construction, and manufacturing.

• Chemical Composition: The general formula of dolomite is CaCO₃·MgCO₃, indicating that it is a double carbonate of calcium and magnesium.
• Uses of Magnesium: Magnesium extracted from dolomite is used in the production of magnesium metal, fireproof materials, and as a component in fertilizers.
• Correct Options: Based on the question, the correct answers are B (Magnesium) and C (Calcium).

Thus, dolomite is an ore of magnesium and calcium.

Summary

Dolomite is a magnesium ore represented by the formula CaCO₃·MgCO₃. The correct answer to the question is Magnesium (B) and Calcium (C). It highlights that dolomite is an ore of magnesium, making it essential for industrial and agricultural purposes.