Chemistry
Distinguish between the physical properties of metals and non-metals with reference to —
(a) lustre
(b) malleability
(c) ductility
(d) tensile strength
(e) sonority
(f) conduction of heat and electricity
(g) melting and boiling point
(h) density
Answer
| S. No. | Properties | Metals | Non-metals |
|---|---|---|---|
| (a) | Lustre | Shows brightness | Shows no brightness |
| (b) | Malleability | Can be beaten into sheets | Cannot be beaten into sheets. |
| (c) | Ductility | Can be drawn into wires | Cannot be drawn into wires. |
| (d) | Tensile strength | Have high tensile strength | Have low tensile strength |
| (e) | Sonority | Produce sound when struck | Do not produce sound when struck |
| (f) | Conduction of heat and electricity | Can conduct heat and electricity | Poor or non-conductors of heat and electricity |
| (g) | Melting and boiling point | Have high melting and boiling point | Have low melting and boiling point |
| (h) | Density | Have high density | Have low density |
Related Questions
Give the common name and chemical name of an ore of –
(a) zinc
(b) Aluminium
(c) iron
With reference to the physical properties of metals and non-metals, state the following exceptions.
(a) a metal which is liquid at room temperature
(b) a non-metal which sublimes and is lustrous
(c) a non-metal which has high tensile strength
(d) a non-metal which conducts electricity
(e) a metal which floats on water
With reference to the following metals state their – use in daily life
Metals:
(a) copper
(b) iron
(c) aluminium
(d) magnesium
(e) zinc
(f) lead
(g) silver
Describe a simple experiment to prove that – a copper wire conducts electricity, but a piece of coal does not.