Which of the following represents the correct order of acidic strength of the given oxides?

Identify the amphoteric oxide from the following.

Which of the following diagrams correctly represents the trend in the acidic strength of the given oxides?

Given below are two statements:
Statement-$I$: Along the period,the chemical reactivity of the elements gradually increases from group $1$ to group $18$.
Statement-$II$: The nature of oxides formed by group $1$ elements is basic,while that of group $17$ elements is acidic.
In the light of the above statements,choose the most appropriate answer from the options given below:

The correct set that contains all kinds (basic, acidic, amphoteric, and neutral) of oxides is:

Aluminium is diagonally related to (in periodic table)