Question

When chlorine water is added to a solution of $KBr$, the solution immediately turns orange red, because :

• A. Chlorine is reduced to chloride ion
• B. Of the formation of $BrCl$
• C. Bromide ion is oxidized to bromine
• D. Of the formation of ${Br}_3^{-}$

Answer 1

The correct option is B Of the formation of $BrCl$

When chlorine water is added to KBr, chlorine displaces bromine as:

${Cl}_2+2KBr\to 2KCl+{Br}_2$

Now $B{r}_2$ which is formed above reacts with chlorine as:

${Cl}_2+{Br}_2\to 2BrCl$

The formation of BrCl turns the solution orange red.