Choose the correct order of enthalpy of formation, `DeltaH_(f)^(@)` for halides of alkali metals :

Enthalpy of formation values for fluorides of alkali metals become

Correct order of density fo alkali metals :

For the following reactions The correct decreasing order of enthalpy of formation of carbocation is

Which equation represents the reaction for the stanard enthalpy of formation , DeltaH_(f)^(@),"for"B_(5)H_(9)(g) at 298 K and 1atm?

The correct order of hydration enthalpies of alkali metal ions is:

The correct order of hydration enthalpies of alkali metal ions is:

The correct order of hydration enthalpies of alkali metal ions is: