Question

Mark the incorrect statement.
(a) All minerals contain objectionable impurities.
(b) All minerals are ores.
(c) All minerals can be used to extract metals.

• A. a, b
• B. a, c
• C. b, c
• D. All of the above

Answer 1

The correct option is D All of the above

All minerals doesn't have objectionable impurities. All minerals are not ores. All ores are minerals. All minerals are not used to extract metals. Only ores are used to extract metals.