what is amphoteric nature
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amphoteric nature of a compound means that it can act as both-acid and base. many metals such as copper, zinc, tin, lead, aluminium, and beryllium form amphoteric oxides or hydroxides.
nimalmanoj:
can u plzz tell what is buffer solution
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The compounds which can behave as an acid as well as an base and react with base and an acid are called as amphoteric compounds
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example :-
Aluminium oxide (Al2O3)
Zinc oxide (ZnO)
water (H20) etc
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example of a amphoteric reaction
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Aluminium oxide (Al2O3)as a base
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Al2O3 + 6 HCl ------> 2 AlCl3 + 3 H2O
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Aluminium oxide (Al2O3) as an acid
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Al2O3 + 2 NaOH + H2O --------> 2 NaAl(OH)4
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------------------------------------------------
example :-
Aluminium oxide (Al2O3)
Zinc oxide (ZnO)
water (H20) etc
----------------------------------------------------------------------------
example of a amphoteric reaction
----------------------------------
Aluminium oxide (Al2O3)as a base
-------------------
Al2O3 + 6 HCl ------> 2 AlCl3 + 3 H2O
-------------------------------------------------------------------------------
Aluminium oxide (Al2O3) as an acid
----------------
Al2O3 + 2 NaOH + H2O --------> 2 NaAl(OH)4
----------------------------------------------------------------------------------
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