CBSE Class 11-science Answered
Write reactions to justify amphoteric nature of aluminium.
Asked by Topperlearning User | 12 Aug, 2014, 10:54: AM
Expert Answer
Amphoteric nature means aluminium shows both acidic and basic character.
Reaction with acids:
2Al(s) + 6HCl (aq) → 2Al3+ (aq) + 6Cl– (aq) + 3H2 (g)
Reaction with Alkalis:
2Al (s) + 2NaOH (aq) + 6H2O (l) → 2 Na+ [Al(OH)4] –(aq) + 3H2(g)
Sodium
Tetrahydroxoaluminate (III)
Answered by | 12 Aug, 2014, 12:54: PM
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