The nature of the oxides of Group 13 elements transitions significantly down the group. Which of the following accurately describes , , and respectively?

Question

The nature of the oxides of Group 13 elements transitions significantly down the group. Which of the following accurately describes $B_2O_3$, $Al_2O_3$, and $Tl_2O$ respectively?

Prashant Kotian · Accepted Answer

Correct answer: A. Boron is a non-metal forming the strongly acidic oxide . Aluminium forms the amphoteric oxide . Thallium, being highly metallic down the group, forms the purely basic oxide .

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