Question

Which is chemically most active non-metal?

• A. $S$
• B. $O_{2}$
• C. $F_{2}$
• D. $N_{2}$

Answer 1

Answer: (C)

$F_{2}$

Answer 2

$F_{2}$ is most reactive due to: (1) highest electronegativity (2) low bond dissociation energy (3) high heat of hydration of $F^{-}$ ion