Question

Boojho has learnt that non-metals on beating with a hammer are generally broken into pieces. Which of the following is a non-metal?​

• A. iron nail​
• B. aluminium wire​
• C. piece of coal​
• D. copper plate​

Answer 1

The correct option is C piece of coal​

Malleability is the property by which a substance can be converted into sheets by beating with a hammer. ​

• Iron, aluminum, and copper are metals and therefore are malleable. ​

• Carbon is a non-metal and is neither malleable nor ductile.​

Coal is a form of carbon and is non-metal. If it is beaten by a hammer, it will break into pieces.​