| (I) Boron trioxide is acidic. |
| (II) Oxides of aluminium and gallium are amphoteric. |
| (III) Oxides of indium and thalliumare basic. |
A) (I), (II) and (III)
B) (II) and (III) only
C) (I) and (III) only
D) (I) and (II) only
Correct Answer: A
Solution :
All statements are correct \[{{B}_{2}}{{O}_{3}}\to \]acidic \[A{{l}_{2}}{{O}_{3}}\And G{{a}_{2}}{{O}_{3}}\]are amphoteric oxides of In & Tl are basic
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