Which one of the following molecules are formed by p-p overlapping?

Which of the following molecule is formed by p-p overlapping?

In which of the following molecules, sigma bonds formed by the overlap of sp^3 d and P orbitals are absent ?

In which of the following molecules, sigma bonds formed by the overlap of sp^3 d and P orbitals are absent ?

In which of the following molecules, sigma bonds fomred by the overlap of SP^(3)d and P-orbitals.

Give example for p-p s overlapping

Which of the following molecules show p pi - p pi bonding?