Which of the following acids is the most acidic?

Which of the following halogen oxides is ionic?

Match the following interhalogen compounds with their corresponding physical properties:

Column-$I$	Column-$II$
$(a) IBr$	$(i)$ Orange solid
$(b) ClF_3$	$(ii)$ Yellow-green liquid
$(c) BrF_3$	$(iii)$ Black solid
$(d) ICl_3$	$(iv)$ Colorless gas

When $I_2$ is passed through $KCl$,$KF$,and $KBr$ solutions,what happens?

The reaction of the type $2X_2 + S \to SX_4$ is shown by sulphur when $X$ is

Observe the following statements :
$I$. Bleaching powder is used in the preparation of chloroform.
$II$. Bleaching powder decomposes in the presence of $CoCl_2$ to liberate $O_2$.
$III$. Aqueous $KHF_2$ is used in the preparation of fluorine.
The correct combination is :