Which of the following statements are true regarding halogens?

1. Fluorine is a stronger oxidising agent than chlorine.
2. Halogens have maximum negative electron gain enthalpy in the corresponding periods.
3. The negative electron gain enthalpy of fluorine is more than that of chlorine.
4. The enthalpy of dissociation of F₂ is more than Cl₂.

Select the correct answer using codes given below:

Although electron gain enthalpy of fluorine is less negative as compared to chlorine, fluorine is a stronger oxidising agent than chlorine. It is due to low enthalpy of dissociation of F-F bond and high hydration enthalpy of F^-. Halogens have maximum negative electron gain enthalpy in the corresponding periods. This is because after gaining an electron they attain the stable noble gas configuration.