Question

In stratosphere, which of the following radical retards the formation of O3 ?

• A. $\overset{\bullet}{C}$H3
• B. $\overset{\bullet}{C}$I
• C. $\overset{\bullet}{F}$
• D. Cl2

Answer 1

Answer: (B)

$\overset{\bullet}{C}$I

Answer 2

$\overset{\bullet}{C}$l radical obtained from CFC's reacts with O3 present in stratusphere.

CF2Cl2(g) $\overset{\bullet}{C}$l(g) + CF2$\overset{\bullet}{C}$l (g)

$\overset{\bullet}{C}$l(g) + O3(g) $\longrightarrow$ Cl$\overset{\bullet}{O}$ (g) + O2 (g)

Cl$\overset{\bullet}{O}$ (g) + O(g) $\longrightarrow$ $\overset{\bullet}{C}$l(g) + O2 (g).