Important ore of iron is

Name three important ores of iron .

List the important ores of iron.

Name two important ores of iron.

Write two important ores of iron.

Name two important ores of iron. Describe the principle of extraction of iron from an important ore. How does iron react with dilute and concentrate nitriacid separately ?

Name two important ores or iron. Write the method of extraction of iron and the chemical reactions involved in it.

A compound which is not an ore of iron is