Which of the following represents clear electropositive properties?

Which of the following orders correctly represents the increasing acidic strength of the given acids?

The elements in which $s$ and $p$-orbitals are present are known as:

The most electropositive element possesses the electronic configuration

Of the following acids,the one that is strongest is

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: