MEDIUMMCQ SINGLENEET ChemistryInorganic Chemistryp-Block (group 13 and 14)Aluminium and Its Compounds

Alumina is:

A.acidic

B.basic

C.neutral

D.amphoteric✓ Correct

Explanation

Alumina 2 3 Al O is an amphoteric oxide of aluminium. Amphoteric oxide is an oxide that reacts with both ac- ids and alkalies. 2 3 3 2 2 3 2 4 Al O 6HCl 2AlCl 3H O Al O 2NaOH 3H O 2NaAl OH + ® + + + ®

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