Select the correct statement(s).
a. Thermodynamic stability of graphite > diamond, but reverse order is true for their kinetic stability
b. Melting point of NaCl > LiCl, but reverse order is true for their thermal stability
c. Ionisation energy of N2>O2 , but reverse order of ionisation energy is true for their corresponding atoms
d. Lewis acidic strength of BeI2>BeF2 , but reverse order is true for their melting point