The P Block Elements - Result Question 84
####87. A solution of potassium bromide is treated with each of the following. Which one would liberate bromine?
[1993]
(a) Hydrogen iodide
(b) Sulphur dioxide
(c) chlorine
(d) Iodine
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Solution:
- (c) A stronger oxidising agent $(Cl_2)$ displaces a weaker oxidising agent $(Br_2)$ from its salt solution.
$ 2 KBr+Cl_2 \to 2 KCl+Br_2 $
