11th Class Chemistry The p-Block Elements-I

  • question_answer 16) Write reactions to justify amphoteric nature of aluminium.

    Answer:

    Aluminium dissolves in mineral acids as well as in aqueous strong alkalies. \[2Al+6HCl\to 2AlC{{l}_{3}}+3{{H}_{2}}\] \[2Al+2NaOH+6{{H}_{2}}O\to 2Na[Al{{(OH)}_{4}}]+3{{H}_{2}}\]


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