Question

The high reactivity of fluorine is due to its _____ dissociation energy. Its shows only ______ oxidation state. It has_______electron affinity than chlorine. Among all hydrogen halides boiling point is highest for_______.

• A. low, -1, lower, HF
• B. high,+1, higher, HF
• C. low,+1, lower, HCl
• D. high,-1, higher, HF

Answer 1

The correct option is A low, -1, lower, HF

$F$ is having low dissociation energy as $F$ being highly electronegative and small thereby repel each other, hence have low dissociation energy.

Shows $-1$ oxidation state as it can accept one $e^{-}$ in order to complete its octet.

It has lower $e^{-}$ affinity than chlorine due to its high electronegativity and small size it repels the new incoming $e^{-}$.

$HF$ has highest boiling point due to the strong bond formation.