To identify which option is NOT a metallic mineral, we need to understand the classification of minerals. Minerals are broadly classified into metallic and non-metallic minerals based on their chemical composition and properties. Metallic minerals contain metals in their raw form, while non-metallic minerals do not.
Correct Option: A) Coal is a non-metallic mineral, primarily used as a fuel, and does not yield metal.
The question asks to identify a ferrous mineral from the given options. Ferrous minerals are those that contain iron. We need to evaluate each option based on its primary chemical composition.
C) Manganese is considered a ferrous mineral because it is primarily used in the production of iron and steel, forming ferrous alloys. While not iron itself, its industrial classification often places it in the ferrous category due to its critical role in enhancing the properties of iron and steel.
The question asks about the primary industry where limestone is used. We need to identify the industry that heavily relies on limestone as a raw material.
Correct Option: D) Cement industry
Limestone is the main raw material for the production of cement. It is crushed and then heated in a kiln with other materials like clay to produce clinker, which is then ground to make cement.
The question asks to identify which of the given minerals is used as an abrasive. Abrasives are materials used to grind, polish, or cut other materials due to their hardness. We need to evaluate the properties of each option, particularly their hardness, to determine their suitability as an abrasive.
Correct Option: B) Diamond — Diamond is the hardest natural mineral known, making it an excellent abrasive used in cutting, grinding, and polishing tools.
The question asks to identify the metal for which Bauxite is the primary ore. This requires knowledge of common ores and the metals extracted from them.
B) Aluminium — Bauxite is indeed the chief ore from which aluminium metal is extracted. The extraction process typically involves the Bayer process to refine bauxite into alumina (\(\text{Al}_2\text{O}_3\)), followed by the Hall-Héroult process to smelt alumina into aluminium metal.
The question asks to identify an energy mineral from the given options. Energy minerals are natural resources that can be used to produce energy. This typically includes fossil fuels and nuclear fuels.
Correct Option: C) Petroleum is a fossil fuel and a major source of energy, making it an energy mineral.