A) \[T{{l}_{2}}O\]
B) \[{{B}_{2}}{{O}_{3}}\]
C) \[A{{l}_{2}}{{O}_{3}}\]
D) \[G{{a}_{2}}{{O}_{3}}\]
Correct Answer: A
Solution :
As we move down the group, the basic nature of the oxides of group 13 elements increases. \[=\frac{100}{200}=\frac{1}{2}\] in aqueous solution gives TIOH which is as strong a base as alkali metal hydroxides.
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