Identify the amphoteric oxide from the following.

Which one of the following represents the electronic configuration of the most electropositive element?

The type of oxide formed by the element among $Li$,$Na$,$Be$,$Mg$,$B$,and $Al$ that has the least atomic radius is $:$

Given below are two statements:
Statement $I$ : Both metal and non-metal exist in $p$ and $d-$block elements.
Statement $II$ : Non-metals have higher ionisation enthalpy and higher electronegativity than the metals.
In the light of the above statements,choose the most appropriate answer from the option given below:

When $KI$ is passed through a solution containing $KCl, KF,$ and $KBr$,what happens?

Which of the following sets of oxides is arranged in the order of basic, amphoteric, and acidic?