Q. Assertion The two lobes of a p-orbital have opposite sign. Reason The two lobes of a p-orbital lie on the opposite side of the nucleus.

 1207  180 VMMC MedicalVMMC Medical 2011 Report Error

Solution:

The sign of the wave function for p-electron changes as we go from one side of the nucleus to the opposite side. Thus, the two lobes of a p-orbital have opposite signs.