Question

If the internuclear axis of a diatomic molecule is $z$, orbitals $p_z$ of one atom and $p_y$ of the other overlap with each other to form which of the following bonds?

Answer 1

Overlapping of two perpendicular orbitals isn't possible.
As $p_x,p_y,p_z$ are perpendicular to each other, no bond will be formed by $p_z$ and $p_y$ overlap as there is zero overlap between the two.