Question

The order of reactivity of halogens towards hydrogen is.

• A. $F_{2} > Cl_{2} > Br_{2} > I_{2}$
• B. $I_{2} > Br_{2} > CI_{2} > F_{2}$
• C. $Cl_{2} > Br_{2} > I_{2} > F_{2}$
• D. $Br_{2} > Cl_{2} > F_{2} > l_{2}$

Answer 1

Answer: (A)

$F_{2} > Cl_{2} > Br_{2} > I_{2}$

Answer 2

: With halogens, hydrogen reacts to give halides.

$H_{2} + Cl_{2} \rightarrow 2HCl$

$H_{2} + l_{2} \rightarrow 2HI$

The order of reactivity of halogens is

$F_{2} > Cl_{2} > Br_{2} > I_{2}.$