Question

The high oxidising power of fluorine is due to its

• A. high electron affinity
• B. high heat of dissociation and low heat of hydration
• C. low heat of dissociation and high heat of hydration
• D. high heat of dissociation and high heat of hydration

Hint:

Strong oxidising agents have weak bonds and highly stable reduced forms.

Answer 1

The Correct Option is C

Understanding the Concept: Oxidising power depends on ability to gain electrons, which is influenced by bond dissociation energy and hydration energy.

Step 1: Fluorine properties:
• Low bond dissociation energy (F–F bond is weak)
• High hydration energy (F$^-$ is small ion)

Step 2: Effect:
• Easy to break F–F bond → easier electron gain
• Strong hydration stabilizes F$^-$ Final Answer:
Thus, fluorine is strongest oxidising agent.