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What is the nature of Al(2)O(3) ? (Acidi...

What is the nature of `Al_(2)O_(3)` ? (Acidic/Basic)

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Ampholteric it reacts with an acid as well as with base.
`AI_(2)O_(3)+6HCI rarr 2AICI_(3)+3H_(2)O`
`AI_(2)O_(3)+3H_(2)O rarr 2Na[AI (OH)_(4)]`
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