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

Given below are two statements :
Statement $I$ : An element in the extreme left of the periodic table forms acidic oxides.
Statement $II$ : Acid is formed during the reaction between water and oxide of a reactive element present in the extreme right of the periodic table.
In the light of the above statements,choose the correct answer from the options given below :

In the reaction $2Br^- + X_2 \to Br_2 + 2X^-$,$X_2$ is .......

Which of the following is the strongest acid?

The element with $ns^2np^2$ valence shell configuration belongs to which group?

The element with $Z = 120$ (not yet discovered) will be a/an: