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Differentiate between metal and non-meta...

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

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`{:("Metals","Non-metals"),("1.Metals form basic oxides with oxygen of air","1.Non-metals form acidic oxides with oxygen of air"),("2.Metals can displace hydrogen from dilute acids ","2.Non-metals cannot displace hydrogen from dilute acids"),("3.Metals show displacement reactions on the basis of their reactivity series ","3.Non-metals do not show such displacement reactions"):}`
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(a) List in tabular form three chemical properties on the basis of which we can differentiate between a metal and a non-metal. (b) Give reasons for the following: (i) Most metals conduct electricity well. (ii) The reaction of iron (III) oxide [Fe_(2)O_(3)] with heated aluminium is used to join cracked machine parts.