In the figure (I), are of ++ overlap is equal to + - overlap, so net overlap is zero, while in figure (II), there is no overlap due to different symmetry.

Figure (I) Analysis:

• It shows two px orbitals along the z-axis.
• Since px​ orbitals have lobes extending along the x-axis, their overlap along the z-axis is negligible.
• The positive and negative lobes cancel out, leading to zero net overlap.

Figure (II) Analysis:

• It shows a px​ orbital and a pyp_ypy​ orbital.
• px​ lies along the x-axis, while py lies along the y-axis.
• Since these orbitals are perpendicular to each other, they do not have effective overlap.
• Due to different symmetries, bond formation does not occur.

Evaluating the Given Statements:

• Statement A (True):
  In Figure (I), the net overlap is zero because the overlapping orbitals are oriented in such a way that they cancel each other out.

• Statement B (True):
  In Figure (II), no overlap occurs due to different symmetry (one orbital along the x-axis, another along the y-axis).

• Statement C (True):
  Since there is no net overlap in Figure (I), bond formation does not occur.

• Statement D (False):
  Bond formation does not occur in Figure (II) due to orthogonal orientation.