Indicate the sigma and pi bonds in the following molecule: C6H6, C6H12, CH2Cl2, CH3NO2, HCONHCH3,

 Sigma bond-The axial  overlapping of atomic orbitals  leads to sigma bond or head to head overlap of atomic orbitals.

        Pi bond- The parallel overlapping of atomic orbital leads to pi bond or side to side overlap of atomic orbitals.