Answers

2016-03-29T21:58:58+05:30
Amphoteric means displaying both acidic and basic characteristics. Aluminium dissolves in Acids and is Bases showing amphoteric behaviour.
2 reactions:
1)  2Al+6HCl---2Al+6Cl+3H2
2)  2Al+2NaOH+6H2O---2Na[Al(OH)4]+3H2
0