Question

Choose the right option for the finest quality of iron ore.

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

Answer 1

The correct option is B

Magnetite

Explanation for Correct answer:-

option(b) Magnetite

• Magnetite(${\mathrm{Fe}}_3{\mathrm{O}}_4$) contains 72.4% of iron making it the finest quality of iron ore.
• Hence, correct option.

Explanation for incorrect answer:-

option(a) Hematite:

• Hematite(${\mathrm{Fe}}_2{\mathrm{O}}_3$)contains 69.9% of iron and is the second finest quality of iron ore.
• Hence, incorrect option.

option(c) Limonite:

• Limonite($\mathrm{FeO}\left(\mathrm{OH}\right)·{\mathrm{nH}}_2\mathrm{O}$) contains 59.8% of iron and is the third finest quality of iron ore.
• Hence, incorrect option.

option(d) Siderite:

• Siderite(${\mathrm{FeCO}}_{3_{}}$) contains 48.2% of iron and is the fourth finest quality of iron ore.
• Hence, incorrect option.

Therefore, Magnetite(${\mathrm{Fe}}_3{\mathrm{O}}_4$) is the finest quality of iron ore.