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.
(I) Boron trioxide is acidic.
(II) Oxides of aluminium and gallium are amphoteric.
(III) Oxides of indium and thallium are basic.
Show Hint
- (II) and (III) only
- (I), (II) and (III)
- (I) and (III) only
- (I) and (II) only
The Correct Option is B
Solution and Explanation
(I) \(\mathrm{B_2O_3}\) is acidic: True.
(II) \(\mathrm{Al_2O_3}\) and \(\mathrm{Ga_2O_3}\) are amphoteric: True.
(III) \(\mathrm{In_2O_3}\) and \(\mathrm{Tl_2O_3}\) are basic: True (standard textbook trend).
All three statements are correct.
Answer: (2) (I), (II) and (III)
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