Fluorine atom is more electronegative than iodine atom yet, HF has lower acid strength than HI. Explain?

HF is weaker acid than HI. Explain.

F is more electronegative than Cl, but electron-gain enthalpy of Cl is greater than that of F. explain.

Although florine is more electonegative than chlorine, fluorobenzene has lower dipole moment (mu = 1.63D) than chlorobenzene (mu = 1.75D) .

Phenol is a stronger acid than alcohol. Explain

Fluorine is more electronegative than oxygen. Yet the highest oxidation state of a metal is found to be more stable in its oxides than in its fluorides.

Although fluorine is more electronegative than oxygen, but the ability of oxygen to stabilise higher oxidation states exceeds that of fluorine. Why ?

Fluorine is more electronegative than either boron or phosphorus. What conclusion can be drawn from the fact that BF_3 has no dipole moment but PF_3 does ?

In case of heteronuclear diatomics of the type AB, where A is more electronegative than B, bonding molecular orbital resembles the character of A more than that of B. The statement

Electron gain enthalpy of Cl is more negative than F though electronegativity of F is greater than 'Cl'- Explain.