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.
Select the correct option:
A
(II) and (III) only
B
(I) and (II) only
C
(I), (II) and (III)
D
(I) and (III) only
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
$\mathrm{B}_2 \mathrm{O}_3$ is an acidic oxide $\mathrm{Al}_2 \mathrm{O}_3$ and $\mathrm{Ga}_2 \mathrm{O}_3$ are amphoteric oxide $\mathrm{In}_2 \mathrm{O}_3$ and $\mathrm{Tl}_2 \mathrm{O}$ are basic oxide
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