Is p2 polar or no polar

Non-polar

Explanation:

The way to determine if something is polar is by subtracting their electronegativity values. The two atoms in this molecule are both phosphorous which have equal electronegativity values (since they are both phosphorus). Anything minus itself will equal 0. If the final difference between the electronegativity values is less than 0.4, it will be non-polar. Since the result is 0, P2 is non-polar.

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be