Question

Bromine is liberated when an aqueous solution of potassium bromide is treated with.

• A. $Cl_{2}$
• B. $I_{2}$
• C. Dilute $H_{2}SO_{4}$
• D. $SO_{2}$

Answer 1

Answer: (A)

$Cl_{2}$

Answer 2

$Cl_{2} + 2KBr \rightarrow 2KCl + Br_{2}$

A more electronegative halogen can displaces less

electronegative halogen.