1.

The correct statements among I to III regarding group 13 element oxides are, (I) Boron trioxide is acidic. (II) Oxides of aluminium and gallium are amphoteric. (III)Oxides of indium and thallium are basic. (1) (I) and (II) only (2) (I) and (III) only (3) (II) and (III) only (4) (I), (II) and (III) only

Answer»

Correct option (4) (I), (II) and (III) only

Explanation:

B2O3 is acrolic in nature Al2O3 and Ca2O3 are amphoteric oxides of In and Tl are basic in nature.



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