Question

Which among the following is the most reactive?

• A. $C{l}_2$
• B. $B{r}_2$
• C. $l_2$
• D. ICl

Answer 1

The correct option is D

ICl

$C{l}_2,B{r}_2$ and $I_2$ homonuclear diatomic molecule in which electronegativity of the combining atoms is same, so they are more stable and less reactive, whereas, I and Cl have different electronegativities and bond between them are polarised and reactive. Therefore, interhalogen compounds are more reactive.