Question

Bromine is extracted from sea-water.
In the final stages of the process two redox reactions take place.
$B{r}_2\left(aq\right)+S{O}_2\left(g\right)+2H_{2}O\left(l\right)\to 2HBr\left(aq\right)+H_{2}S{O}_4\left(aq\right)$
$2HBr\left(aq\right)+C{l}_2\left(g\right)\to B{r}_2\left(g\right)+2HCl\left(aq\right)$
Which row is correct?
strongest oxidising agent $\to$ weakest oxidising agent

A	$B{r}_2$	$S{O}_2$	$C{l}_2$
B	$C{l}_2$	$B{r}_2$	$S{O}_2$
C	$C{l}_2$	$S{O}_2$	$B{r}_2$
D	$S{O}_2$	$B{r}_2$	$C{l}_2$

• A. A
• B. B
• C. C
• D. D

Answer 1

Answer: (B)

B

$\text{An oxidizing agent or oxidant gains electrons and is reduced in a chemical reaction.}$

$\text{Chlorine has maximum tendency to attrect electron while Sulphur dioxide has}$ $\text{less tendency than chlorine and bromine to attrect electrons.}$

$\text{So option B is correct.}$