Why EA of fluorine is less than that of chlorine?

Bond enthalpy of fluorine is lower than that of chlorine why ?

Account for the following : (i) Ammonia is more basic than phosphine. (ii) Elements of Group - 16 generally show lower value of first ionisation enthalpy compared to the elements in the corresponding periods of Group - 15. (iii) Electron pair gain enthalpy with (-)ve sign for fluorine is less than that for chlorine.

The basicity of aniline is less than that of cyclohexylamine. This is due to

SRP of copper is less than that for silver.

Although electron gain enthalpy of fluorine is less negative as compared to chlorine. Fluorine is a stronger oxidizing agent than chlorine. Why ?

The energy gap in case of which of the following is less than 3 eV?

Which of the following is less basic than methylamine ?