AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
Magnetite is the iron ore known for its magnetic properties. It has the highest iron content among all iron ores, up to 70 per cent, and is especially valuable in the electrical industry.
Source: Chapter 5, Iron Ore section
The question tests direct recall of a specific fact. Examiners expect two key points in one line: the name Magnetite and its iron content (up to 70%). Mentioning its magnetic quality and use in the electrical industry adds completeness. Do not confuse it with Hematite, which is more widely used industrially but has a lower iron content (50–60%).