Which overlap is involved in HCl molecule ?

The overlapping involved in HF molecule is

How is HCl molecule formed?

Which of the following orbital overlaps is involved in the formation of the carbon-carbon signle bond in the molecule HC -= C - CH = CH_(2) ?

The type of overlap that takes place in NH_3 molecule is

_____ overlap is present in F_2 molecule.

Which orbital is not involved in the formation of PCl_(5) molecule :-