Chemical Bonding And Molecular Structure

lone pair - bond pair repulsion exists in \(\mathrm{PH}_3\)

\(\mathrm{PH}_4^{+}\) has square planar structure

\(\mathrm{PH}_3\) has planar trigonal structure

hybridisation of \(\mathrm{P}\) changes when \(\mathrm{PH}_3\) is converted to \(\mathrm{PH}_4^{+}\)