Which one of the following correctly represents the order of stability of oxides,$X_{2}O$ $(X = \text{halogen})$?

Which of the following reactions would be incorrect?

$Cl_2$ gas can be dried by passing it over ....

In halogens,with the increase of atomic number,which trend is observed?

When $1 \ mol$ of fluorine reacts with $2 \ mol$ of hot and concentrated $KOH$,the products formed are $KF$,$H_2O$,and $O_2$. What is the molar ratio of $KF$,$H_2O$,and $O_2$ produced?

$Cl_2$ gas is dried over which of the following?