Chemistry - CHEMICAL BONDING Question with Solution | TestHub

${\mathrm{Be}}_3{\mathrm{N}}_2<{\mathrm{Mg}}_3{\mathrm{N}}_2<{\mathrm{Ca}}_3{\mathrm{N}}_2<{\mathrm{Sr}}_3{\mathrm{N}}_2<{\mathrm{Ba}}_3{\mathrm{N}}_2$ : Thermal Stability Order

${\mathrm{Li}}_2\mathrm{O}<{\mathrm{Na}}_2\mathrm{O}<{\mathrm{K}}_2\mathrm{O}<{\mathrm{Rb}}_2\mathrm{O}<{\mathrm{Cs}}_2\mathrm{O}$ : Solubility Order

$\mathrm{BeO}>\mathrm{MgO}>\mathrm{CaO}>\mathrm{SrO}>\mathrm{BaO}:$ Melting Point

$\mathrm{NO}={\mathrm{CO}}^{+}<\mathrm{CO}$ : Bond Order