Differentiate between metal and non-metal on the basis of their chemical properties.

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Solution

Metals:
High to moderately electropositive so electrons are generally free moving.
Good conductors of heat and electricity.
Non-metals:
Moderately to highly electronegative so no free electrons.
Bad conductors of heat and electricity.
Difference between metals and non-metals on basis of chemical properties:
Metals
Non- metals
Metals react with oxygen to form basic oxides. Non-metals react with oxygen to form acidic oxides.
Most of them displace hydrogen from dilute acids. Non-metals are non-reactive with dilute acids.
Only few of the metals combine with hydrogen to form ionic hydrides. Non-metals combine with hydrogen to form covalent hydrides.
Most metals displaces hydrogen from water/water vapours to form metal hydroxide. Usually, they do not react with water/ water vapours.
Metals react with chlorine to form ionic chlorides Non-metals react with chlorine to form covalent compounds.
Metals are electropositive. Non-metals are electronegative.

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Q. Differentiate between metals and non-metals on the basis of their chemical properties.

Question 14
Differentiate between metal and non-metal on the basis of their chemical properties.

(a) State any three differences between the physical properties of metal 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.
(e) Which non-metal has been placed in the reactivity series of metal?

Question 14
Differentiate between metal and non-metal on the basis of their chemical properties.

List in tabular form three chemical properties on the basis of which we can differentiate between a metal and a non-metal?

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Metals	Non- metals
Metals react with oxygen to form basic oxides.	Non-metals react with oxygen to form acidic oxides.
Most of them displace hydrogen from dilute acids.	Non-metals are non-reactive with dilute acids.
Only few of the metals combine with hydrogen to form ionic hydrides.	Non-metals combine with hydrogen to form covalent hydrides.
Most metals displaces hydrogen from water/water vapours to form metal hydroxide.	Usually, they do not react with water/ water vapours.
Metals react with chlorine to form ionic chlorides	Non-metals react with chlorine to form covalent compounds.
Metals are electropositive.	Non-metals are electronegative.