Among $Al_2O_3$,$SiO_2$,$P_2O_3$ and $SO_2$,the correct order of acid strength is

Considering the elements $B, C, N, F,$ and $Si,$ the correct order of their non-metallic character is:
$(a)$ $B > C > Si > N > F$
$(b)$ $Si > C > B > N > F$
$(c)$ $F > N > C > B > Si$
$(d)$ $F > N > C > Si > B$

Which of the following will displace the halogen from the solution of the halide?

Among the following,the most basic oxide is

In which of the following are the oxides of three elements $X, Y$ and $Z$ correctly arranged in the increasing order of acidic nature? The electronic configurations of $X, Y$ and $Z$ are $[Ne] 3s^2 3p^1$,$[Ne] 3s^2 3p^5$,and $[Ne] 3s^2$ respectively.

Which of the following ions has a pseudo-noble gas electronic configuration?