If the central atom is of third row or below this in the periodic table, then lone pair will occupy a stereochemically inactive s -orbital and bonding will be through almost pure p -orbitals and bond angles are nearly 90∘ , if the substituent's electronegativity value is ≤2.5 .
Select incorrect statement regarding P4 molecule.
a. Each P atom is joined with three P-atoms
b. P4 molecule contains total 12 bond angles
c. Lone pair of each P atom is present in almost pure s -orbital
d. Lone pair of each P atom present in hybrid orbital