Which element can form the most acidic oxide

Which element of group 13 forms acidic oxide ?

In elements of group 14,:Which forms the most acidic oxide?

The element which can form an acidic oxide should be the one whose atomic number is:

Among the second period elements, the most acidic oxide is formed by the element of group:

Which of the following elements will form an acidic oxide?

which of the following elements forms a strongly acidic oxide?

In elements of group 14. (a) which forms the most acidic oxide (b) Which is normally found in +2 oxidation state (c) which is used as semi conductor?

The element that forms most basic oxide is :