The mixture of conc. $HCl$ and potassium chlorate on heating gives

How can you prepare $Cl_2$ from $HCl$ and $HCl$ from $Cl_2$? Write reactions only.

Which of the following is the correct order of thermal stability of hydrogen halides $(H - X)$?

Which one of the following is the true covalent oxide of iodine?

$X_2$ is used in the refining of $Ti$ metal by the van Arkel method. $Y_2$ does not liberate $O_2$ from water and does not form $HY$ and $HOY$ with water. $X_2$ and $Y_2$ are respectively:

Identify the correct order of oxidizing power.