List of top Chemistry Questions on Hybridisation asked in AIEEE

The formation of molecular complex $BF_3 ??NH_3$ results in a change in hybridization of boron

The electron affinity of chlorine is $3.7\, eV. \,1$ gram of chlorine is completely converted to $Cl^-$ ion in a gaseous state. $(1\, eV = 23.06\, kcal\, mol^{-1})$. Energy released in the process is