State any three differences between the physical properties of metals and non-metals. (b) Differentiate between metals and non-metals on the basis of their chemical properties. (c) State three reasons (of which at least one must be chemical) for believing that sodium is a metal. (d) State three reasons (of which at least one must be chemical) for believing that sulphur is a non- metal. Which non-metal has been placed in the reactivity series of metals?
ChemistryClass 10ICSEAnswered 27 Mar 2026
Answer
- Difference of metals and non-metals on their physical properties
- Metals are malleable whereas non-metals are non-
- Metals are ductile whereas non-metals are non-ductile
- Metals are good conductors of electricity whereas non-metals are bad conductors of electricity
- Difference of metals and non-metals on their chemical
- Metals form basic oxides whereas non-metals form acidic or neutral
- Metals displace hydrogen from water whereas non-metals form acidic or neutral
- Metal displace hydrogen from dilute acids whereas non-metals do not react with dilute acids
- Sodium is a solid that conducts electricity and form basic
- Sulphur is a non-metal. It is non-conductor of electricity and forms acidic
- Hydrogen is non-metal but placed in reactive series