Q. Consider the following: - Limestone
- Mica
- Gypsum
- Coal
- Petroleum
Which of the above are examples of non-metallic minerals?
Answer:
1, 2, 3, 4 and 5
Notes: Non-metallic minerals do not contain metals. Limestone, mica, and gypsum are classic non-metallic minerals. Coal and petroleum, while primarily used as fuels, are also classified as non-metallic minerals because they lack metallic elements. Hence, all items mentioned – limestone, mica, gypsum, coal, and petroleum – are examples of non-metallic minerals.