Hydrofluoric acid $(HF)$ cannot be stored in glass bottles because it reacts with glass to form which of the following?

Identify the incorrect statement about the interhalogen compounds.

An inorganic white crystalline compound $(A)$ has a rock salt structure. $(A)$ on reaction with conc. $H_2SO_4$ and $MnO_2$ evolves a pungent smelling,greenish-yellow gas $(B)$. Compound $(A)$ gives a white precipitate of $(C)$ with $AgNO_3$ solution. Compounds $(A)$,$(B)$,and $(C)$ will be respectively:

Which of the following represents the correct order for oxidising power of the given species $ClO_4^{-}$,$BrO_4^{-}$,and $IO_4^{-}$?

An aqueous solution of a halogen salt of potassium reacts with the same halogen $X_2$ to give $KX_3$,a brown-coloured solution,in which the halogen exists as the $X_3^-$ ion,$X_2$ acts as a Lewis acid,and $X^-$ acts as a Lewis base. The halogen $X$ is:

In the manufacture of bromine from sea water,the mother liquor containing bromides is treated with: