Question

Which among the following is the most reactive?

• A. $C{l}_2$
• B. $B{r}_2$
• C. $I_2$
• D. $ICl$

Answer 1

The correct option is D $ICl$

$ICl$ is an interhalogen compound. Inter halogen compounds are generally more reactive than halogens except $F$. This is because, the $A-X$ bond in interhalogen compounds are weaker than the $X-X$ bonds in a dihalogen molecule.