In: Chemistry
4.About the hybrid atomic orbitals it is correct to say that
all are correct as mixing of two atomic orbitals create bonding and antibonding type mixing and the overlap can be of pi ANd sigma type if the overlap will be head on then sigma and if lateral then pi type .
9.pi bonds are formed from the lateral overlap of orbitals,not frontal or head on overlap
the orbitals s can form sigma bond i.e right
sigma bond can also be formed by overlap of atomic orbitals.