NCERT 8th Class (CBSE) Science: Metals and Non-Metals – Quiz
31 Multiple Choice Questions related to NCERT 8th Class (CBSE) Science: Metals and Non-Metals – Quiz:
- Elements can be classified into metals and non-metals depending on their physical and chemical properties.
- The ore of a metal consists of rocks containing minerals of the metal in sufficient quantities, so that it is profitable to mine it and extract the metal from it.
- Metals are generally solid at room temperature, have a metallic luster, generally hard and strong with high specific gravities, melting and boiling points. They are malleable and ductile, good conductors of heat and electricity and are sonorous.
- Non-metals are solid, liquid or in gaseous form at room temperature, are not lustrous, are comparatively soft and have low density. They are generally brittle when solid, are bad conductors of heat and electricity, have low melting and boiling points and are not sonorous.