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

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Solution

Metal

Non-metal

Metals are electropositive.

Non-metals are electronegative.

They react with oxygen to form basic oxides.

These have ionic bonds.

They react with oxygen to form acidic or neutral oxides.

These have covalent bonds.

They react with water to form oxides and hydroxides. Some metals react with cold water, some with hot water, and some with steam.

They do not react with water.

They react with dilute acids to form a salt and evolve hydrogen gas. However, Cu, Ag, Au, Pt, Hg do not react.

They do not react with dilute acids. These are not capable of replacing hydrogen.

They react with the salt solution of metals. Depending on their reactivity, displacement reaction can occur.

These react with the salt solution of non-metals.

They act as reducing agents (as they can easily lose electrons).

These act as oxidising agents (as they can gain electrons).

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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.

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?

Q. List any three chemical properties based on which metals and non-metals are differentiated.

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Metal	Non-metal
Metals are electropositive.	Non-metals are electronegative.
They react with oxygen to form basic oxides. These have ionic bonds.	They react with oxygen to form acidic or neutral oxides. These have covalent bonds.
They react with water to form oxides and hydroxides. Some metals react with cold water, some with hot water, and some with steam.	They do not react with water.
They react with dilute acids to form a salt and evolve hydrogen gas. However, Cu, Ag, Au, Pt, Hg do not react.	They do not react with dilute acids. These are not capable of replacing hydrogen.
They react with the salt solution of metals. Depending on their reactivity, displacement reaction can occur.	These react with the salt solution of non-metals.
They act as reducing agents (as they can easily lose electrons).	These act as oxidising agents (as they can gain electrons).