Question

Which of the following varieties of iron ore is known as the best quality ore with very high iron content?

• A. Magnetite
• B. Hematite
• C. Limonite
• D. Siderite

Hint:

Remember:

• Magnetite $\rightarrow$ Highest iron content
• Hematite $\rightarrow$ Most abundantly used in India

Answer 1

The Correct Option is A

Concept: Iron ores are naturally occurring rocks from which iron is extracted. Different varieties of iron ore contain different percentages of iron. The quality of iron ore depends upon the amount of iron content present in it.

• Magnetite contains the highest iron content.
• Hematite is the most widely used iron ore in India.
• Limonite contains lower iron percentage.
• Siderite has impurities and comparatively less iron.

Thus, the ore with the best quality and highest iron content is Magnetite.

Step 1: Identify the iron ore having maximum iron content. Magnetite is considered the finest quality iron ore because it contains nearly \(70%\) iron content. \[ \text{Magnetite} \approx 70% \text{ iron} \]

Step 2: Compare with other iron ores.

• Hematite contains lower iron content than Magnetite.
• Limonite is a hydrated iron oxide with lower purity.
• Siderite contains carbonate impurities.

Therefore, Magnetite is regarded as the best quality iron ore. \[ \boxed{\text{Magnetite is the best quality iron ore with very high iron content.}} \]