Question

Which one of the following compounds in aqueous solution gives a white ppt. with perchloric acid?

• A. $NaCl$
• B. $KCl$
• C. $MgC{l}_2$
• D. $FeC{l}_3$

Answer 1

Answer: (B)

Aqueous solution of KC1 gives white precipitate with perchloric acid $(HCl{O}_4)$ . Oxidation number of iodine