Question

When chlorine water is exposed to sunlight, $O_2$ is liberated. Hence :

• A. hydrogen has little affinity to $O_2$
• B. hydrogen has more affinity to $O_2$
• C. hydrogen has more affinity to $C{l}_2$
• D. it is a reducing agent

Answer 1

The correct option is C hydrogen has more affinity to $C{l}_2$

When chlorine water is exposed to sunlight, $O_2$ is liberated. Hence hydrogen has more affinity to $C{l}_2$
$2C{l}_2+2H_{2}O\stackrel{sunlight}{\to }{O}_2+4HCl$
Thus, chlorine can displace oxygen from water. This indicates that the affinity of hydrogen for chlorine is more than the affinity of hydrogen for oxygen.