Question

Which of the following statement(s) is/are correct?

• A. All ores are minerals.
• B. All minerals are ores.
• C. Some ores are minerals.
• D. Not all ores are minerals.

Answer 1

The correct option is A

All ores are minerals.

The elements or compounds, which occur naturally in the earth’s crust, are known as minerals.

At some places, minerals contain a very high percentage of a particular metal and the metal can be profitably extracted from it. These minerals are called ores.

So, all ores are minerals, but not all minerals are ores. It is so because metals cannot be extracted from minerals in a convenient way. E.g. Aluminium metal is found in both minerals: clay and bauxite. Aluminium metal is extracted only from bauxite in a convenient way. So, bauxite is an ore of aluminium. On the other hand, it is not extracted from clay so clay remains only as mineral not ore of aluminium.